fillet (n.) Look up fillet at Dictionary.com
early 14c., "little headband," from Old French filet "thread, filament; strip, ligament" (12c.), diminutive of fil "thread" (see file (v.1)). Sense of "cut of meat or fish" is from late 14c., apparently so called because it was prepared by being tied up with a string.
filling (n.) Look up filling at Dictionary.com
c. 1400, "that which fills or fills up," verbal noun from fill (v.). Dentistry sense is from 1848. Filling station attested by 1915.
fillip (v.) Look up fillip at Dictionary.com
mid-15c., philippen "to flip something with the fingers, snap the fingers," possibly of imitative origin. As a noun, from 1520s, fyllippe.
filly (n.) Look up filly at Dictionary.com
c. 1400, filli, fyly, "a young mare, female colt or foal," possibly from Old Norse fylja, fem. of foli "foal" (see foal (n.)). Slang sense of "lively young girl" is from 1610s.
film (n.) Look up film at Dictionary.com
Old English filmen "membrane, thin skin, foreskin," from West Germanic *filminjan (source also of Old Frisian filmene "skin," Old English fell "hide"), extended from Proto-Germanic *fello(m) "animal hide," from PIE *pel- (4) "skin, hide" (source also of Greek pella, Latin pellis "skin").

Sense of "a thin coat of something" is 1570s, extended by 1845 to the coating of chemical gel on photographic plates. By 1895 this also meant the coating plus the paper or celluloid. Hence "a motion picture" (1905); sense of "film-making as a craft or art" is from 1920.
film (v.) Look up film at Dictionary.com
c. 1600, "to cover with a film or thin skin," from film (v.). Intransitive sense is from 1844. Meaning "to make a movie of" is from 1899. Related: Filmed; filming.
film noir (n.) Look up film noir at Dictionary.com
1958, from French, literally "black film," from noir (12c.), from Latin niger (see Negro).
film-maker (n.) Look up film-maker at Dictionary.com
also filmmaker, 1859 as a solution used in developing photographs, later "a producer of film for cameras" (by 1889), from film (n.) + maker. As "producer of a cinematographic work, movie-maker," from 1905.
film-strip (n.) Look up film-strip at Dictionary.com
also filmstrip, 1930, from film (n.) + strip (n.).
filmography (n.) Look up filmography at Dictionary.com
1962, from film (n.) + ending from bibliography, etc.
filmy (adj.) Look up filmy at Dictionary.com
c. 1600, "composed of thin membranes," from film (n.) + -y (2). Related: Filminess.
filter (n.) Look up filter at Dictionary.com
early 15c., "piece of felt through which liquid is strained," from Old French feutre "felt, felt hat, carpet" (Modern French filtre) and directly from Medieval Latin filtrum "felt" (used to strain impurities from liquid), from West Germanic *filtiz (see felt (n.)). Figurative use from c. 1600. As a pad of absorbent material attached to a cigarette, from 1908.
filter (v.) Look up filter at Dictionary.com
1570s (transitive), from French filtrer or from Medieval Latin filtrare, from filtrum "felt" (see filter (n.)). The figurative sense is from 1830. Intransitive use from 1798. Related: Filtered; filtering.
filth (n.) Look up filth at Dictionary.com
Old English fylð "uncleanness, impurity, foulness," from Proto-Germanic *fulitho (source also of Old Saxon fulitha "foulness, filth," Dutch vuilte, Old High German fulida), noun derivative of *fulo- "foul" (see foul (adj.)). A classic case of i-mutation.
filthy (adj.) Look up filthy at Dictionary.com
late 12c., fulthe, "corrupt, sinful," from filth + -y (2). Meaning "physically unclean, dirty, noisome" is from late 14c. Meaning "morally dirty, obscene" is from 1530s.
In early use often hardly more emphatic than the mod. dirty; it is now a violent expression of disgust, seldom employed in polite colloquial speech. [OED]
Related: Filthily; filthiness.
filtrate (v.) Look up filtrate at Dictionary.com
1610s, probably a back-formation from filtration or else from Medieval Latin filtratus. Related: Filtrated; filtrating. As a noun, "liquid which has passed through a filter," from 1846.
filtration (n.) Look up filtration at Dictionary.com
"act or process of filtering," c. 1600, perhaps from French filtration (1570s), noun of action from filter "to filter" (see filter (v.)).
fimbria (n.) Look up fimbria at Dictionary.com
"a fringing filament," from Late Latin fimbria (sing.), from Latin fimbriae (pl.), "fringe, border, threads." Related: Fimbriated (late 15c.); fimbrial.
fin (n.) Look up fin at Dictionary.com
Old English finn "fin," from Proto-Germanic *finno (source also of Middle Low German vinne, Dutch vin), perhaps from Latin pinna "feather, wing" (see pin (n.)); or, less likely, from Latin spina "thorn, spine" (see spine).

U.S. underworld slang sense of "$5 bill" is 1925, from Yiddish finif "five," from German fünf (see five) and thus unrelated. The same word had been used in England in 1868 to mean "five pound note" (earlier finnip, 1839).
fin de siecle (adj.) Look up fin de siecle at Dictionary.com
1890, from French fin de siècle "end of century," phrase used as an adjective. At the time it meant "modern;" now it means "from the 1890s." "App. first in title of a comedy, Paris fin de siècle, produced at the Gymnase, Feb. 1890" [Weekley]. French siècle "century, age" is from Latin saeculum (see secular).
finagle (v.) Look up finagle at Dictionary.com
"get dishonestly or deviously," 1926, American English, possibly a variant of English dialectal fainaigue "to cheat or renege" (at cards), which is of unknown origin. Liberman says finagle is from figgle, phonetic variant of fiddle "fidget about," frequentative of fig. Related: Finagled; finagling.
final (adj.) Look up final at Dictionary.com
early 14c., from Old French final "final, last," and directly from Late Latin finalis "of or pertaining to an end, concluding, final," from finis "end" (see finish (v.)). As a noun, late 14c., "that which comes last;" meaning "final contest" in a sporting sense is from 1880. As a shortening of final examination, from 1880.
final solution (n.) Look up final solution at Dictionary.com
1947, translation of German Endlösung, name given to Nazi Jewish policy from 1941.
finale (n.) Look up finale at Dictionary.com
1783, a musical term, from noun use of Italian finale "final," from Latin finalis "of or pertaining to an end" (see final). From 1724 as an Italian word in English. Figurative use by 1810.
finalise (v.) Look up finalise at Dictionary.com
chiefly British English spelling of finalize. For suffix, see -ize. Related: Finalised; finalising.
finalist (n.) Look up finalist at Dictionary.com
"competitor remaining after eliminations," 1896, from final + -ist. Earlier "one who believes the end has been reached" (1883).
finality (n.) Look up finality at Dictionary.com
1540s, "a goal, a guiding object," from Middle French finalité, from Late Latin finalitatem (nominative finalitas) "state of being final," from Latin finalis "last, of or pertaining to an end" (see final). From 1833 as "quality or state of being final."
finalize (v.) Look up finalize at Dictionary.com
1850, from final + -ize. Related: Finalized; finalizing.
finally (adv.) Look up finally at Dictionary.com
late 14c., fynaly "at the end;" c. 1400, "completely, beyond recovery;" from final + -ly (2).
finals (n.) Look up finals at Dictionary.com
short for final exams, by 1890; see final (adj.).
finance (n.) Look up finance at Dictionary.com
c. 1400, "an end, settlement, retribution," from Old French finance "end, ending; pardon, remission; payment, expense; settlement of a debt" (13c.), noun of action from finer "to end, settle a dispute or debt," from fin (see fine (n.)). Compare Medieval Latin finis "a payment in settlement, fine or tax."

The notion is of "ending" (by satisfying) something that is due (compare Greek telos "end;" plural tele "services due, dues exacted by the state, financial means"). The French senses gradually were brought into English: "ransom" (mid-15c.), "taxation" (late 15c.); the sense of "management of money, science of monetary business" first recorded in English 1770.
finance (v.) Look up finance at Dictionary.com
late 15c., "to ransom" (obsolete), from finance (n.). Sense of "to manage money" is recorded from 1827; that of "to furnish with money" is from 1866. Related: Financed; financing.
finances (n.) Look up finances at Dictionary.com
"pecuniary resources, funds in money," 1730, modeled on the French cognate, from plural of finance (n.).
financial (adj.) Look up financial at Dictionary.com
1769, from finance (n.) + -ial. Related: Financially.
financier (n.) Look up financier at Dictionary.com
1610s, "one concerned with finances" (especially public), from French financier (16c.), from finance (see finance (n.)). Sense of "capitalist, one skilled in financial operations" is first recorded 1867.
finch (n.) Look up finch at Dictionary.com
common European bird, Old English finc "finch," from Proto-Germanic *finkiz "finch" (source also of Middle Low German and Middle Dutch vinke, Dutch vink, Old High German finco, German Fink), perhaps imitative of the bird's note (compare Breton pint "chaffinch," Russian penka "wren").
find (v.) Look up find at Dictionary.com
Old English findan "come upon, meet with; discover; obtain by search or study" (class III strong verb; past tense fand, past participle funden), from Proto-Germanic *finthan "to come upon, discover" (source also of Old Saxon findan, Old Frisian finda, Old Norse finna, Middle Dutch vinden, Old High German findan, German finden, Gothic finþan), originally "to come upon."

The Germanic word is from PIE root *pent- "to tread, go" (source also of Old High German fendeo "pedestrian;" Sanskrit panthah "path, way;" Avestan panta "way;" Greek pontos "open sea," patein "to tread, walk;" Latin pons (genitive pontis) "bridge;" Old Church Slavonic poti "path," peta "heel;" Russian put' "path, way").

Germanic *-th- in English tends to become -d- after -n-. The change in the Germanic initial consonant is from Grimm's Law. To find out "to discover by scrutiny" is from 1550s (Middle English had a verb, outfinden, c. 1300).
find (n.) Look up find at Dictionary.com
"person or thing discovered, discovery of something valuable," 1825, from find (v.).
finding (n.) Look up finding at Dictionary.com
c. 1300, "act of discovering" (by chance or after searching; also an instance of this); verbal noun from find (v.). From c. 1400 as "what the mind discovers; knowledge attained by human effort" (as distinct from revelation or authority). Late 14c. as "act of sustaining, supporting, or providing the necessities of life; that which is provided by way of sustenance and support." Legal sense "proceedings leading to a verdict in an inquisition, etc.," is from mid-15c. Old English finding meant "invention." Related: Findings.
fine (adj.) Look up fine at Dictionary.com
mid-13c., "unblemished, refined, pure, free of impurities," also "of high quality, choice," from Old French fin "perfected, of highest quality" (12c.), a back-formation from finire or else from Latin finis "that which divides, a boundary, limit, border, end" (see finish (v.)); hence "acme, peak, height," as in finis boni "the highest good." The English word is from c. 1300 as "rich, valuable, costly;" also in a moral sense "true, genuine; faithful, constant." From late 14c. as "expertly fashioned, well or skillfully made," also, of cloth, "delicately wrought." Of weapons or edges, "sharp" from c. 1400. In reference to quality of gold and silver, late 15c.

In French, the main meaning remains "delicate, intricately skillful;" in English since c. 1300 fine has been also a general broad expression of admiration or approval, the equivalent of French beau (as in fine arts, 1767, translating French beaux-arts). Related: Finer; finest. Fine print is from 1861 as "type small and close-set;" by 1934 in the extended sense "qualifications and limitations of a deal."
fine (n.) Look up fine at Dictionary.com
c. 1200, "termination, end; end of life," from Old French fin "end, limit, boundary; death; fee, payment, finance, money" (10c.), from Latin finis "end" (see finish (v.)), in Medieval Latin also "payment in settlement, fine or tax."

Modern meaning "exaction of money payment for an offense or dereliction" is via sense of "sum of money paid for exemption from punishment or to compensate for injury" (mid-14c., from the same sense in Anglo-French, late 13c.) and from phrases such as to make fine "make one's peace, settle a matter" (c. 1300). Meaning "sum of money imposed as penalty for some offense" is first recorded 1520s.
fine (v.) Look up fine at Dictionary.com
late 13c., "pay as a ransom or penalty," from fine (n.). Inverted meaning "to punish by pecuniary penalty" is from 1550s. Related: Fined; fining.
fine-tune (v.) Look up fine-tune at Dictionary.com
also fine-tune, 1969, a back-formation from fine-tuning (1909 in reference to radio; earlier in various machinery contexts). From fine (adj.) + tune (v.). Related: Fine-tuning.
finely (adv.) Look up finely at Dictionary.com
early 14c., "perfectly, completely," from fine (adj.) + -ly (1). Meaning "delicately, minutely" is from 1540s; that of "excellently" is from 1680s.
finery (n.) Look up finery at Dictionary.com
1670s, "showy dress," from fine (adj.) + -ery. Literally, "something that is fine."
finesse (n.) Look up finesse at Dictionary.com
1520s, "fineness" (obsolete); 1530s, "artifice, delicate stratagem," from Middle French finesse "fineness, subtlety," from Old French fin "subtle, delicate" (see fine (adj.)).
finesse (v.) Look up finesse at Dictionary.com
"to use fine stratagems," 1746, originally as a term in whist; see finesse (n.). Related: Finessed; finessing.
finger (n.) Look up finger at Dictionary.com
"terminal or digital member of the hand" (in a restricted sense not including the thumb), Old English finger, fingor "finger," from Proto-Germanic *fingraz (source also of Old Saxon fingar, Old Frisian finger, Old Norse fingr, Dutch vinger, German Finger, Gothic figgrs "finger"), with no cognates outside Germanic; perhaps connected with PIE *penkwe-, the root meaning "five."

As a unit of measure for liquor and gunshot (late Old English) it represents the breadth of a finger, about three-quarters of an inch. They generally are numbered from the thumb outward, and named index finger, fool's finger, leech- or physic-finger, and ear-finger.
finger (v.) Look up finger at Dictionary.com
early 15c., "to touch or point to with the finger" (but see fingering (n.1) from late 14c.), from finger (n.). Sense of "play upon a musical instrument" is from 1510s. Meaning "touch or take thievishly" is from 1520s. The meaning "identify a criminal" is underworld slang first recorded 1930. Related: Fingered; fingering. Compare Dutch vingeren, German fingern, Swedish fingra, all from their respective nouns.
finger-nail (n.) Look up finger-nail at Dictionary.com
also fingernail, early 13c., from finger (n.) + nail (n.).