leech (n.2) Look up leech at Dictionary.com
"physician" (obsolete, poetical, or archaic), from Old English læce "leech," probably from Old Danish læke, from Proto-Germanic *lekjaz "enchanter, one who speaks magic words; healer, physician" (source also of Old Frisian letza, Old Saxon laki, Old Norse læknir, Old High German lahhi, Gothic lekeis "physician"), literally "one who counsels," perhaps connected with a root found in Celtic (compare Irish liaig "charmer, exorcist, physician") and Slavic (compare Serbo-Croatian lijekar, Polish lekarz), from PIE *lep-agi "conjurer," from root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')."

For sense development, compare Old Church Slavonic baliji "doctor," originally "conjurer," related to Serbo-Croatian bajati "enchant, conjure;" Old Church Slavonic vrači, Russian vrač "doctor," related to Serbo-Croatian vrač "sorcerer, fortune-teller." The form merged with leech (n.1) in Middle English, apparently by folk etymology. In early Middle English also of God and Christ; by 17c. the sense had so deteriorated leech typically was applied only to veterinary practitioners, and soon it was entirely archaic.

The fourth finger of the hand, in Old English, was læcfinger, translating Latin digitus medicus, Greek daktylus iatrikos, supposedly because a vein from that finger stretches straight to the heart.
leechcraft (n.) Look up leechcraft at Dictionary.com
"art of healing," Old English læcecræft; see leech (2) + craft (n.). Old English also had læcedom "medicine." A later word for it was leechery (c. 1600).
Leeds Look up Leeds at Dictionary.com
city in England, 16c., earlier Ledes (1086), from Old English Loidis (8c.) "(district of) the people beside the river Lat'" (perhaps an earlier name of the river Aire.
leek (n.) Look up leek at Dictionary.com
pungent bulbous culinary herb of the genus Allium, related to the onion, long the national badge of the Welsh, Old English læc (Mercian), leac (West Saxon) "leek, onion, garlic," from Proto-Germanic *lauka- (source also of Old Norse laukr "leek, garlic," Danish løg, Swedish lök "onion," Old Saxon lok "leek," Middle Dutch looc, Dutch look "leek, garlic," Old High German louh, German Lauch "leek"). No certain cognates outside Germanic; Finnish laukka, Russian luk-, Old Church Slavonic luku are said to be from Germanic. Also the final element in garlic.
leer (n.) Look up leer at Dictionary.com
"a significant glance, amorous or malign or both," 1590s, from leer (v.).
leer (v.) Look up leer at Dictionary.com
1520s, "to look obliquely" (since 18c. usually implying a lustful, wolfish, malicious intent), probably from Middle English noun ler "cheek," from Old English hleor "the cheek, the face," from Proto-Germanic *hleuza- "near the ear," from *hleuso- "ear," from PIE root *kleu- "to hear." If so, the notion is probably of "looking askance" (compare the figurative development of cheek). Related: Leered; leering.
leery (adj.) Look up leery at Dictionary.com
"knowing, wide-awake, untrusting, suspicious, alert," 1718, originally slang, with -y (2), but otherwise of unknown origin. Perhaps from dialectal lere "learning, knowledge" (see lore), or from leer (v.) in a now-obscure sense "walk stealthily with averted looks, sneak away" (1580s). OED suggests connection with archaic leer (adj.) "empty, useless," a general Germanic word (cognate with German leer, Dutch laar), of unknown origin.
lees (n.) Look up lees at Dictionary.com
"dregs, sediment of wine or any liquor," late 14c., from Old French lies, plural of lie "dregs, sediment," which is probably from Celtic *leg-ya- (compare Old Irish lige "a bed, a lying"), from PIE root *legh- "to lie down, lay."
leet (n.1) Look up leet at Dictionary.com
in reference to special court proceedings, late 13c., from Anglo-French lete, Anglo-Latin leta, of unknown origin; OED suggests possible connection to let (v.).
leet (n.2) Look up leet at Dictionary.com
ASCII alternative alphabet used mostly in internet chat, by 1997, derived from elite (adj.), and sometimes the word also was used as an adjective in that sense in online gaming.
leeward (adj.) Look up leeward at Dictionary.com
"situated away from the wind, on the side opposite the weather side of a ship, pertaining to the quarter toward which the wind blows," 1660s, from lee + -ward. Also as an adverb. Similar formation in Dutch lijwaarts, German leewärts, Swedish lävart. The Leeward Islands are so called in reference to prevailing northeasterly trade winds.
leeway (n.) Look up leeway at Dictionary.com
also lee-way, 1660s, "sideways drift of a ship in her course caused by wind, deviation from true course by drifting to leeward," from lee + way (n.). Applied to loss of progress in general from 1827. Figurative meaning "extra space" is by 1835.
left Look up left at Dictionary.com
"remaining," past tense and past participle of leave (v.).
left (n.) Look up left at Dictionary.com
c. 1200, "the left-hand side, the side opposite the right," from left (adj.). In military formations with reference to the center; of river banks it implies going in the direction the current flows; in an assembly in reference to the seat of the presiding officer; in baseball in reference to the point of view of the batter. Political sense "the democratic or liberal party" arose from the custom of assigning those members of a legislative body to the left side of a chamber. This usage is first attested in English in 1837 (by Carlyle, in reference to the French Revolution), and probably is a loan-translation of French la gauche (1791), said to have originated during the seating of the French National Assembly in 1789 in which the nobility took the seats on the President's right and left the Third Estate to sit on the left. The term became general in U.S. and British political speech c. 1900. Century Dictionary and OED 2nd ed. both refer to this as primarily in reference to continental European politics.
left (adj.) Look up left at Dictionary.com
c. 1200, "opposite of right," probably from Kentish and northern English forms of Old English *lyft "weak; foolish" (in lyft-adl "lameness, paralysis"). Compare East Frisian luf, Dutch dialectal loof "weak, worthless").

Sense of "opposite of right" is from the left being usually the weaker hand), a derived sense also found in cognate Middle Dutch and Low German luchter, luft. Compare Lithuanian kairys "left" and Lettish kreilis "left hand" both from a root that yields words for "twisted, crooked."

The usual Old English winstre/winestra "left" (adj.); "left hand," literally "friendlier," a euphemism used superstitiously to avoid invoking the unlucky forces connected with the left side (compare sinister). The Kentish word itself might have been originally a taboo replacement, if instead it represents PIE *laiwo- "considered conspicuous" (represented in Greek laios, Latin laevus, and Russian levyi). Greek also uses a euphemism for "left," aristeros "the better one" (compare also Avestan vairyastara- "to the left," from vairya- "desirable").

Meaning "being on the left-hand side" is from c. 1300. As an adverb from early 14c. For political senses, see left (n.). Used since at least c. 1600 in various senses of "irregular, illicit;" earlier proverbial sense was "opposite of what is expressed" (mid-15c.), for example over the left (shoulder) "not at all," added to a statement to negate or neglect what was just said (1705). To have two left feet "be clumsy" is attested by 1902.

Phrase out in left field "out of touch with pertinent realities" is attested from 1944, from the baseball fielding position that tends to be far removed from the play (left field in baseball attested by 1867). The Parisian Left Bank (of the River Seine) has been associated with intellectual and artistic culture since at least 1893; Left Coast "Pacific Coast of the U.S." is by 1980s.

German link, Dutch linker "left" are said to be not directly related to these, being instead from Old High German slinc and Middle Dutch slink "left," related to Swedish linka "limp," slinka "dangle," and Old English slincan "crawl" (Modern English slink).
left wing (n.) Look up left wing at Dictionary.com
also (as an adjective) left-wing, 1871 in the political sense (1530s in a military formation sense), from left (adj.) + wing (n.). Related: Left-winger.
left-handed (adj.) Look up left-handed at Dictionary.com
late 14c., of persons, "having the left hand stronger or more capable than the right;" 1650s of tools, etc., "designed for use with the left hand," from left (adj.) + -handed. In 15c. it also could mean "maimed." Sense of "underhanded" is from early 17c., as in left-handed compliment (1787, also attested 1855 in pugilism slang for "a punch with the left fist"), as is that of "illicit" (as in left-handed marriage, for which see morganatic; 17c. slang left-handed wife "concubine"). Related: Left-handedly; left-handedness.
left-hander (n.) Look up left-hander at Dictionary.com
1834, "a blow with the left hand," 1871, "left-handed person," from left hand.
left-wing (n.) Look up left-wing at Dictionary.com
also (as an adjective) leftwing; 1530s of armies, 1882 in team sports, 1884 in politics; see left (adj.) + wing (n.).
leftish (adj.) Look up leftish at Dictionary.com
1934, in the political sense, from left (adj.) + -ish. Related: Leftishness.
leftism (n.) Look up leftism at Dictionary.com
1917, from left in the political sense + -ism.
leftist (adj.) Look up leftist at Dictionary.com
1897, from left in the political sense + -ist.
leftover (adj.) Look up leftover at Dictionary.com
also left-over, "remaining, not used up," 1890, from left + over. The noun meaning "something left over" is from 1891; leftovers "excess food after a meal" (especially if re-served later) is from 1878; in this sense Old English had metelaf.
leftward (adv.) Look up leftward at Dictionary.com
"to or toward the left or the left-hand side," late 15c., from left (adj.) + -ward. Related: Leftwards.
lefty (n.) Look up lefty at Dictionary.com
"left-handed person," 1886, American English, baseball slang, from left (adj.) + -y (3). Political sense by 1935.
leg (n.) Look up leg at Dictionary.com
late 13c., from a Scandinavian source, probably Old Norse leggr "a leg, bone of the arm or leg," from Proto-Germanic *lagjaz (cognates Danish læg, Swedish läg "the calf of the leg"), a word with no certain ulterior connections. Perhaps from a PIE root meaning "to bend" [Buck]. For Old Norse senses, compare Bein, the German word for "leg," in Old High German "bone, leg" (see bone (n.)). Replaced Old English shank (n.), itself also perhaps from a root meaning "crooked."

Distinguished from an arm, leg, or fin in being used for support. Of triangle sides from 1650s (translating Greek skelos, literally "leg"). Extended to furniture supports from 1670s. Meaning "part of pants which cover the leg" is from 1570s. By 1870s as an adjective it had a salacious suggestion of artistic displays focused on the female form, such as leg-piece in theater jargon, leg-business as slang for "ballet."

The meaning "a part or stage of a journey or race" (1920) is from earlier sailing sense of "a run made by a ship on a single tack when beating to windward" (1867), which was usually qualified as long leg, short leg, etc. Slang phrase shake a leg is attested from 1869 as "dance," 1880 as "hurry up." To be on (one's) last legs "at the end of one's life" is from 1590s, the notion is of something that serves one for support and keeps one moving. To take leg bail was old slang for "run away" (1774). Legs "ability to be an enduring success, staying power" is from 1970s show business slang.
leg (v.) Look up leg at Dictionary.com
"to use the legs; walk or run," c. 1500 (from the beginning usually with it); from leg (n.).
leg up (n.) Look up leg up at Dictionary.com
"an aid, a boost," 1837, from leg (n.) + up (adv.).
leg-lock (n.) Look up leg-lock at Dictionary.com
1848, "chains for the legs," from leg (n.) + lock (n.1). As a hold in wrestling, from 1886.
leg-man (n.) Look up leg-man at Dictionary.com
"assistant who does leg work," 1923; see leg (n.)).
leg-rest (n.) Look up leg-rest at Dictionary.com
1833, from leg (n.) + rest (n.1) "support on which something rests."
leg-room (n.) Look up leg-room at Dictionary.com
also legroom, 1846 (in reference to carriages), from leg (n.) + room (n.).
leg-warmer (n.) Look up leg-warmer at Dictionary.com
1974, from leg (n.) + agent noun from warm (v.). Related: Leg-warmers.
leg-work (n.) Look up leg-work at Dictionary.com
also legwork, 1891, from leg (n.) + work (n.). Originally news reporter slang for an assignment that promised more walking than copy.
legacy (n.) Look up legacy at Dictionary.com
late 14c., legacie, "body of persons sent on a mission," from Medieval Latin legatia, from Latin legatus "ambassador, envoy, deputy," noun use of past participle of legare "send with a commission, appoint as deputy, appoint by a last will" (see legate).

Sense of "property left by will, a gift by will" appeared in Scottish mid-15c. Legacy-hunter is attested from 1690s. French legs "a legacy" is a bad spelling of Old French lais (see lease (n.)). French legacie is attested only from 16c.
legal (adj.) Look up legal at Dictionary.com
mid-15c. "of or pertaining to the law," from Old French légal "legal" (14c.) or directly from Latin legalis "pertaining to the law," from lex (genitive legis) "an enactment; a precept, regulation, principle, rule; formal proposition for a law, motion, bill; a contract, arrangement, contrivance. This probably is related to legere "to gather," from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')." Perhaps the noun is from the verb on the notion of "a collection of rules," but de Vaan seems to imply that the evolution is the reverse:
The verb legare and its compounds all have a meaning which involves a 'task, assignment,' and can therefore be interpreted as derivatives of lex 'law.' The [Proto-Italic] root noun *leg- 'law' can be interpreted as a 'collection' of rules. Whether the root noun existed already in PIE is uncertain for lack of precise cognates.
Sense of "permitted by law" is from 1640s. Related: Legally. Not etymologically related to law (n.), q.v. The usual Old French form was leial, loial (see leal, loyal). Legal tender "money which the creditor is bound by law to accept" is from 1740 (see tender (n.2)). A legal holiday (1867) is one established by statute or proclamation and during which government business is usually suspended.
legalese (n.) Look up legalese at Dictionary.com
"the language of legal documents," 1914, from legal + language name ending -ese.
legalise (v.) Look up legalise at Dictionary.com
chiefly British English spelling of legealize; for suffix, see -ize. Related: Legalisation; legalised; legalising.
legalistic (adj.) Look up legalistic at Dictionary.com
1843, with -ic + legalist "one who advocates strict adherence to the law," especially in theology (1640s); see legal + -ist. Legalism in theology is attested from 1838.
legality (n.) Look up legality at Dictionary.com
mid-15c., from Middle French légalité, from Medieval Latin legalitatem (nominative legalitas), from Latin legalis "pertaining to the law" (see legal).
legalization (n.) Look up legalization at Dictionary.com
1805, noun of action from legalize.
legalize (v.) Look up legalize at Dictionary.com
1716, from legal + -ize. Related: Legalized; legalizing.
legate (n.) Look up legate at Dictionary.com
mid-12c., "authorized representative of the Pope," from Old French legat and directly from Latin legatus "ambassador, envoy," originally "provided with a commission," past participle of legare "send as a deputy, send with a commission, charge, bequeath," possibly literally "engage by contract" and related to lex (genitive legis) "contract, law," from PIE root *leg- (see legal). General sense of "ambassador, delegate, messenger of a state or authority" is from late 14c. in English. Related: Legator; legatee; legatine.
legation (n.) Look up legation at Dictionary.com
c. 1400, "mission of a deputy or envoy," from Old French legation "embassy, mission" and directly from Latin legationem (nominative legatio) "the office of an ambassador," noun of action from past participle stem of legare "send as a deputy" (see legate). From c. 1600 as "body of deputies sent, representatives," 1832 as "official residence of a diplomat."
legato (adv.) Look up legato at Dictionary.com
in music, "smoothly, without intervals," 1811, from Italian legato, literally "bound," past participle of legare, from Latin ligare "tie" (see ligament). Related: Legatissimo.
legem pone (n.) Look up legem pone at Dictionary.com
"payment of money, cash down," 1570s, old slang, from the title in the Anglican prayer-book of the psalm appointed for Matins on the 25th of the month; it was consequently associated especially with March 25, the new year of the old calendar and a quarter day, when payments and debts came due and money changed hands generally. The title is from the first two words of the fifth division of Psalm cxix: Legem pone mihi, Domine, viam justificationum tuarum "Teach me, O Lord, the way of thy statutes."
legend (n.) Look up legend at Dictionary.com
early 14c., "narrative dealing with a happening or an event," from Old French legende (12c., Modern French légende) and directly from Medieval Latin legenda "legend, story," especially lives of saints, which were formerly read at matins and in refectories of religious houses, literally "(things) to be read," on certain days in church, etc., from Latin legendus, neuter plural gerundive of legere "to read; to gather, pluck, select," from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')."

Extended sense of "nonhistorical or mythical story," with or without saints, wonders, and miracles is first recorded late 14c. Meaning "writing or inscription" (especially on a coin or medal) is from 1610s; on a map, illustration, etc., from 1903. To be a legend in (one's) own time is from 1958.
legendary (adj.) Look up legendary at Dictionary.com
mid-16c., from Medieval Latin legendarius "pertaining to legends," from legenda (see legend). Earlier in English it was a noun meaning "a collection of legends" (1510s).
legerdemain (n.) Look up legerdemain at Dictionary.com
early 15c., "conjuring tricks, sleight of hand," from Middle French léger de main "quick of hand," literally "light of hand." Léger "light" in weight (Old French legier, 12c.) is from Latin levis "light," from PIE root *legwh- "not heavy, having little weight." It is cognate with Spanish ligero, Italian leggiero "light, nimble" (hence also leger line in music). Main "hand" is from Latin manus (from PIE root *man- (2) "hand").
legged Look up legged at Dictionary.com
"having legs" (of a specified kind), usually in compounds, mid-15c., from leg (n.).