afterthought (n.) Look up afterthought at Dictionary.com
1660s, from after + thought.
afterward (adv.) Look up afterward at Dictionary.com
Old English æftanweard, from æftan "after" (see aft) + -weard suffix indicating direction (see -ward); nautical use as aftward, then expanded by influence of after; variant afterwards shows adverbial genitive.
afterwards (adv.) Look up afterwards at Dictionary.com
c. 1300, from afterward (q.v.) + adverbial genitive -s; originally a Northern form.
afterword (n.) Look up afterword at Dictionary.com
1890, a Saxonist subsitute for epilogue; from after + word (n.).
ag (n.) Look up ag at Dictionary.com
abbreviation of agriculture, attested from 1918, American English.
aga (n.) Look up aga at Dictionary.com
title of rank, especially in Turkey, c. 1600, from Turkish agha "chief, master, lord," related to East Turk. agha "elder brother."
again (adv.) Look up again at Dictionary.com
late Old English agan, from earlier ongean "toward, opposite, against, in exchange for," from on "on" (see on) + -gegn "against, toward," compounded for a sense of "lined up facing, opposite," and "in the opposite direction, returning." For -gegn, compare Old Norse gegn "straight, direct;" Danish igen "against;" Old Frisian jen, Old High German gegin, German gegen "against, toward," entgegen "against, in opposition to."

In Old English, eft was the main word for "again" (see eftsoons), but this often was strengthened by ongean, which became the principal word by 13c. Norse influence is responsible for the hard -g-. Differentiated from against 16c. in southern writers, again becoming an adverb only, and against taking over as preposition and conjunction, but again clung to all senses in northern and Scottish dialect (where against was not adopted).
against (adv.) Look up against at Dictionary.com
early 12c., agenes "in opposition to," a southern variant of agen "again" (see again), with adverbial genitive. The parasitic -t turned up mid-14c. and was standard by early 16c., perhaps from influence of superlatives.
Agamemnon Look up Agamemnon at Dictionary.com
king of Mycenae, leader of the Greeks in the Trojan War, his name perhaps represents Greek Aga-medmon, literally "ruling mightily," from agan "very much" + medon "ruler" (see meditation).
agape (adv.) Look up agape at Dictionary.com
1660s, from a- (1) + gape (v.).
agape (n.) Look up agape at Dictionary.com
c. 1600, from Greek agape "brotherly love, charity," from agapan "greet with affection, love," which is of unknown origin. Agape was used by early Christians for their "love feast" held in connection with the Lord's Supper. In modern use, often in simpler sense of "Christian love" (1856, frequently opposed to eros as "carnal or sensual love").
agate (n.) Look up agate at Dictionary.com
1560s, from Middle French agathe (16c.), from Latin achates, from Greek akhates, the name of a river in Sicily where the stones were found (Pliny). But the river could as easily be named for the stone.

The earlier English form of the word, achate (early 13c.), was directly from Latin. Figurative sense of "a diminutive person" (c. 1600) is from the now-obsolete meaning "small figures cut in agates for seals," preserved in typographer's agate (1838), the U.S. name of the 5.5-point font called in Great Britain ruby. Meaning "toy marble made of glass resembling agate" is from 1843 (colloquially called an aggie).
Agatha Look up Agatha at Dictionary.com
fem. proper name, from Latin, from Greek Agathe, fem. of agathos "good," which is of unknown origin. Never a popular name in U.S., and all but unused there since 1940.
agathism (n.) Look up agathism at Dictionary.com
the doctrine that all things tend toward the good, 1830, from agathist + -ism.
agathist (n.) Look up agathist at Dictionary.com
1816, from Greek agathos "good" (see Agatha) + -ist.
Doctor Kearney, who formerly, with so much reputation, delivered lectures in this place on the history of Rome, observed to me once, that he was not an optimist, but an "agathist"; that he believed that every thing tended to good, but did not think himself competent to determine what was absolutely the best. The distinction is important, and seems to be fatal to the system of Optimism. [George Miller, "Lectures on the Philosophy of Modern History," Dublin, 1816]
agave (n.) Look up agave at Dictionary.com
American aloe plant, 1797, from Latin Agave, from Greek Agaue, proper name in mythology (mother of Pentheus), from agauos "noble," perhaps from agasthai "wonder at," from gaiein "to rejoice, exult," with intensive prefix a-. The name seems to have been taken generically by botanists, the plant perhaps so called for its "stately" flower stem.
age (v.) Look up age at Dictionary.com
"to grow old," late 14c., from age (n.). Meaning "to make old" is early 15c. Related: Aged; aging.
age (n.) Look up age at Dictionary.com
late 13c., "long but indefinite period in human history," from Old French aage (11c., Modern French âge) "age; life, lifetime, lifespan; maturity," earlier edage, from Vulgar Latin *aetaticum (source of Spanish edad, Italian eta, Portuguese idade "age"), from Latin aetatem (nominative aetas), "period of life, age, lifetime, years," from aevum "lifetime, eternity, age," from PIE root *aiw- "vital force, life, long life, eternity" (see eon). Meaning "time something has lived, particular length or stage of life" is from early 14c. Used especially for "old age" since early 14c. Expelled native eld.
age-group (n.) Look up age-group at Dictionary.com
1904, originally a term in the science of demographics, from age (n.) + group (n.).
age-old (adj.) Look up age-old at Dictionary.com
1896, from age (n.) + old.
aged (adj.) Look up aged at Dictionary.com
"having lived long," mid-15c., past participle adjective from age (v.). Meaning "having been allowed to get old" (of cheese, etc.) is by 1873. Meaning "of the age of" is from 1630s. Aged Parent is from "Great Expectations" (1860-61).
ageism (n.) Look up ageism at Dictionary.com
"discrimination against people based on age," coined 1969 by U.S. gerontologist Dr. Robert N. Butler, from age + -ism, on pattern of racism, sexism. Related: Ageist.
ageless (adj.) Look up ageless at Dictionary.com
1650s, from age + -less. Related: Agelessly; agelessness.
agency (n.) Look up agency at Dictionary.com
1650s, "active operation," from Medieval Latin agentia, noun of state from Latin agentem (nominative agens) "effective, powerful," present participle of agere (see act (n.)). Meaning "establishment where business is done for another" first recorded 1861.
agenda (n.) Look up agenda at Dictionary.com
1650s, from Latin agenda, literally "things to be done," neuter plural of agendus, gerundive of agere "to do" (see act (n.)). Originally theological (opposed to matters of belief), sense of "items of business to be done at a meeting" first attested 1882. "If a singular is required (=one item of the agenda) it is now agendum, the former singular agend being obsolete" [Fowler].
agent (n.) Look up agent at Dictionary.com
late 15c., "one who acts," from Latin agentem (nominative agens) "effective, powerful," present participle of agere "to set in motion, drive, lead, conduct" (see act (n.)). Meaning "any natural force or substance which produces a phenomenon" is from 1550s. Meaning "deputy, representative" is from 1590s. Sense of "spy, secret agent" is attested by 1916.
agent (adj.) Look up agent at Dictionary.com
1610s, from agent (n.).
Agent Orange (n.) Look up Agent Orange at Dictionary.com
powerful defoliant used by U.S. military in the Vietnam War, attested from 1971, said to have been used from 1961; so called from the color strip on the side of the container, which distinguished it from Agent Blue, Agent White, etc., other herbicides used by the U.S. military. Banned from April 1970.
aggie (n.1) Look up aggie at Dictionary.com
"college student studying agriculture," by 1880, American English college slang, from agriculture + -ie.
aggie (n.2) Look up aggie at Dictionary.com
type of toy marble, by 1905, American English, colloquial shortening of agate (q.v.).
Excited groups gather about rude circles scratched in the mud, and there is talk of "pureys," and "reals," and "aggies," and "commies," and "fen dubs!" There is a rich click about the bulging pockets of the boys, and every so often in school time something drops on the floor and rolls noisily across the room. When Miss Daniels asks: "Who did that?" the boys all look so astonished. Who did what pray tell? ["McClure's Magazine," May 1905]
agglomerate (v.) Look up agglomerate at Dictionary.com
1680s, from Latin agglomeratus, past participle of agglomerare "to wind or add onto a ball," from ad- "to" (see ad-) + glomerare "wind up in a ball," from glomus (genitive glomeris) "ball of yarn," from PIE root *glem-. Related: Agglomerated; agglomerating.
agglomeration (n.) Look up agglomeration at Dictionary.com
1774, "action of collecting in a mass," from Latin agglomerationem (nominative agglomeratio), noun of action from past participle stem of agglomerare (see agglomerate). In reference to a mass so formed, it is recorded from 1833.
agglutinate (v.) Look up agglutinate at Dictionary.com
1580s (from 1540s as a past participle adjective), from Latin agglutinatus, past participle of agglutinare (see agglutination). Related: Agglutinated; agglutinating.
agglutination (n.) Look up agglutination at Dictionary.com
1540s, from Latin agglutinationem (nominative agglutinatio), noun of action from past participle stem of agglutinare "fasten with glue," from ad- "to" (see ad-) + glutinare "to glue," from gluten "glue," from PIE *glei- (see glue (n.)). Philological sense first recorded 1650s, in agglutinative.
agglutinative (adj.) Look up agglutinative at Dictionary.com
1630s, in a medical sense, from Latin agglutinat-, past participle stem of agglutinare (see agglutination). Philological sense is from 1650s.
aggrandisement (n.) Look up aggrandisement at Dictionary.com
chiefly British English spelling of aggrandizement. See -ize.
aggrandize (v.) Look up aggrandize at Dictionary.com
1630s, "to make larger, increase," from French agrandiss-, present participle stem of agrandir "to augment" (16c.), ultimately from Latin ad "to" (see ad-) + grandire "to make great," from grandis (see grand (adj.)). The double -g- spelling in English is by analogy with Latin words in ad-. Related: Aggrandized; aggrandizing.
aggrandizement (n.) Look up aggrandizement at Dictionary.com
1650s, from French agrandissement, noun of action from agrandir (see aggrandize).
aggravate (v.) Look up aggravate at Dictionary.com
1520s, "make heavy, burden down," from past participle adjective aggravate "burdened; threatened" (late 15c.), from Latin aggravatus, past participle of aggravare "to render more troublesome," literally "to make heavy" (see aggravation). Earlier in this sense was aggrege (late 14c.). Meaning "to make a bad thing worse" is from 1590s; that of "exasperate, annoy" is from 1610s.
To aggravate has properly only one meaning -- to make (an evil) worse or more serious. [Fowler]
Related: Aggravated; aggravating. Phrase aggravating circumstances is recorded from 1790.
aggravated (adj.) Look up aggravated at Dictionary.com
1540s, "increased, magnified," past participle adjective from aggravate. Meaning "irritated" is from 1610s; that of "made worse" is from 1630s. The earlier adjective was simply aggravate (late 15c.).
aggravation (n.) Look up aggravation at Dictionary.com
late 15c., from Middle French aggravation, from Late Latin aggravationem (nominative aggravatio), noun of action from past participle stem of Latin aggravare "make heavier," figuratively "to embarrass further, increase in oppressiveness," from ad "to" (see ad-) + gravare "weigh down," from gravis "heavy" (see grave (adj.)). Oldest sense is "increasing in gravity or seriousness;" that of "irritation" is from 1610s.
aggregate (v.) Look up aggregate at Dictionary.com
c. 1400, from Latin aggregatum, neuter past participle of aggregare (see aggregate (adj.)). Related: Aggregated; aggregating.
aggregate (adj.) Look up aggregate at Dictionary.com
c. 1400, from Latin aggregatus "associated," literally "united in a flock," past participle of aggregare "add to (a flock), lead to a flock, bring together (in a flock)," from ad- "to" (see ad-) + gregare "herd" (see gregarious).
aggregate (n.) Look up aggregate at Dictionary.com
"number of persons, things, etc., regarded as a unit," early 15c., from noun use of Latin adjective aggregatum, neuter of aggregatus (see aggregate (adj.)).
aggregation (n.) Look up aggregation at Dictionary.com
early 15c., from Middle French agrégation or directly from Medieval Latin aggregationem (nominative aggregatio), noun of action from past participle stem of Latin aggregare (see aggregate (adj.)).
aggress (v.) Look up aggress at Dictionary.com
"attack," 1714, back-formation from aggression, but used earlier with a sense of "approach" (1570s) and in this sense from French aggresser, from Late Latin aggressare, frequentative of Latin aggredi "to approach, attack." Related: Aggressed; aggressing.
aggression (n.) Look up aggression at Dictionary.com
1610s, "unprovoked attack," from French aggression (16c.), from Latin aggressionem (nominative aggressio) "a going to, an attack," noun of action from past participle stem of aggredi "to approach; attack," from ad- "to" (see ad-) + gradi (past participle gressus) "to step," from gradus "a step" (see grade (n.)). Psychological sense of "hostile or destructive behavior" first recorded 1912 in A.A. Brill's translation of Freud.
aggressive (adj.) Look up aggressive at Dictionary.com
1791, from Latin aggress-, past participle stem of aggredi "to approach, attack" (see aggression) + -ive. In psychological use from 1913, first in translations of Freud. Related: Aggressively; aggressiveness.
aggressor (n.) Look up aggressor at Dictionary.com
1670s, from Latin aggressor, agent noun from aggredi "to approach, attack" (see aggression).
aggrieve (v.) Look up aggrieve at Dictionary.com
early 14c., from Old French agrever "make worse; become worse," from Latin aggravare "make heavier" (see aggravation). Related: Aggrieved; aggrieving.