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Origin and history of parabola

parabola(n.)

"a curve commonly defined as the intersection of a cone with a plane parallel with its side," 1570s, from Modern Latin parabola, from Greek parabole "a comparison, parable," literally "a throwing beside," hence "a juxtaposition" (see parable), so called by Apollonius of Perga c. 210 B.C.E. because it is produced by "application" of a given area to a given straight line. It had a different sense in Pythagorean geometry. Related: Parabolic.

also from 1570s

Entries linking to parabola

parable(n.)

"allegorical or metaphorical narrative, usually having a moral for instruction," late 13c., parabol, modern form from early 14c., "saying or story in which something is expressed in terms of something else," from Old French parable "parable, parabolic style in writing" (13c.), from Latin parabola "comparison," from Greek parabol�� "a comparison, parable," literally "a throwing beside," hence "a juxtaposition," from para- "alongside" (see para- (1)) + bolē "a throwing, casting, beam, ray," related to ballein "to throw" (from PIE root *gwele- "to throw, reach").

Rendered in Old English as bispell. In Vulgar Latin, parabola took on the meaning "word," hence Italian parlare, French parler "to speak" (see parley (n.)).

parabolic(adj.)

mid-15c., parabolik, "figurative, allegorical, of or pertaining to a parable or a parabole," from Medieval Latin parabolicus, from late Greek parabolikos "figurative," from parabolē "comparison" (see parable). In geometry, "of or pertaining to a parabola," by 1702 (see parabola). Related: Parabolical.

*gwele-

*gwelə-, also *gwel-, Proto-Indo-European root meaning "to throw, reach," with extended sense "to pierce."

It might form all or part of: anabolic; arbalest; astrobleme; ball (n.2) "dancing party;" ballad; ballet; ballista; ballistic; ballistics; belemnite; catabolism; devil; diabolical; discobolus; emblem; embolism; hyperbola; hyperbole; kill (v.); metabolism; palaver; parable; parabola; parley; parliament; parlor; parol; parole; problem; quell; quail (v.) "lose heart, shrink, cower;" symbol.

It might also be the source of: Sanskrit apa-gurya "swinging," balbaliti "whirls, twirls;" Greek ballein "to throw, to throw so as to hit," also in a looser sense, "to put, place, lay," bole "a throw, beam, ray," belemnon "dart, javelin," belone "needle," ballizein "to dance;" Armenian kelem "I torture;" Old Church Slavonic zali "pain;" Lithuanian galas "end," gėla "agony," gelti "to sting."

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    palaver
    conference, a tedious discussion," sailors' slang, from Portuguese palavra "word, speech, talk," from a metathesis of Late Latin parabola..."speech, discourse," from Latin parabola "comparison" (see parable)....
    parole
    parole "word, speech" (in parole d'honneur "word of honor") from Vulgar Latin *paraula "speech, discourse," from Latin parabola...
    recreation
    late 14c., recreacioun, "refreshment or curing of a person, refreshment by eating," from Old French recreacion (13c.), from Latin recreationem (nominative recreatio) "recovery from illness," noun of action from past participle stem of recreare "to refresh, restore, make anew, rev
    latitude
    late 14c., "breadth," from Old French latitude (13c.) and directly from Latin latitudo "breadth, width, extent, size," from lātus (adj.) "wide, broad, extensive" Old Latin stlatus, from PIE *stleto-, suffixed form of root *stele- "to spread, to extend" (source also of Old Church
    obituary
    1706, "register of deaths, a list of the dead," from Medieval Latin obituarius "a record of the death of a person," literally "pertaining to death," from Latin obitus "departure, a going to meet, encounter" (a euphemism for "death"), from stem of obire "go toward, go to meet" (as
    affirmation
    early 15c., affirmacioun, "assertion that something is true," from Old French afermacion "confirmation" (14c.), from Latin affirmationem (nominative affirmatio) "an affirmation, solid assurance," noun of action from past-participle stem of affirmare "to make steady; strengthen; c
    soda
    late 15c., sode, "sodium carbonate, an alkaline substance extracted from certain ashes" (now made artificially), from Italian sida (or Medieval Latin soda), in reference to a kind of saltwort from which soda was obtained, a word of uncertain origin. Perhaps it is from a Catalan s
    heyday
    also hey-day, late 16c. as an exclamation, an alteration of heyda (1520s), an exclamation of playfulness, cheerfulness, or surprise something like Modern English hurrah; apparently it is an extended form of the Middle English interjection hey or hei (see hey). Compare Dutch heida
    participle
    late 14c., in grammar, "a noun-adjective, a word having the value of an adjective as a part of speech but so regularly made from a verb and associated with it in meaning and construction as to seem to belong to the verb," from Old French participle in the grammatical sense (13c.)
    speakeasy
    "unlicensed saloon," 1889 (in the New York "Voice"), from the verbal phrase, from speak (v.) + easy (adv.); so called from the practice of speaking quietly about such a place in public, or when inside it, so as not to alert the police and neighbors. Compare early 19c. Irish and B

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