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Origin and history of azo-

azo-

before vowels az-, word-forming element denoting the presence of nitrogen, used from late 19c. as combining form of azote (1791), the old term for "nitrogen," from Greek a- "not, without" (see a- (3)) + zoion "a living being" (from PIE root *gwei- "to live"). Azote was coined in French by Lavoisier & de Morveau because living things cannot survive in the pure gas.

also from late 19c.

Entries linking to azo-

azotemia(n.)

also azotaemia, "presence of excess nitrogen in the blood," 1894, from azote "nitrogen" (see azo-) + -emia "blood." Related: Azotemic.

benzodiazepine(n.)

1934, from benzo-, word-forming element used in chemistry to indicate presence of a benzene ring fused with another ring, + di + azo- + epine, a suffix denoting a seven-membered ring, from Greek hepta (see seven).

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nitrogen
colorless, odorless gaseous element, 1794, from French nitrogène, coined 1790 by French chemist Jean Antoine Chaptal (1756-1832), from Greek nitron "sodium carbonate" (see nitro-) + French gène "producing," from Greek -gen "giving birth to" (see -gen). The gas was identified in p
fantasy
early 14c., "illusory appearance," from Old French fantaisie, phantasie "vision, imagination" (14c.), from Latin phantasia, from Greek phantasia "power of imagination; appearance, image, perception," from phantazesthai "picture to oneself," from phantos "visible," from phainestha
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
virgin
c. 1200, "unmarried or chaste woman noted for religious piety and having a position of reverence in the Church," from Anglo-French and Old French virgine "virgin; Virgin Mary," from Latin virginem (nominative virgo) "maiden, unwedded girl or woman," also an adjective, "fresh, unu
cleave
"to split, part or divide by force," Old English cleofan, cleven, cliven "to split, separate" (class II strong verb, past tense cleaf, past participle clofen), from Proto-Germanic *kleuban (source also of Old Saxon klioban, Old Norse kljufa, Danish klöve, Dutch kloven, Old High G
consult
"ask advice of, seek the opinion of as a guide to one's own judgment," 1520s, from French consulter (16c.), from Latin consultare "consult, take the advice of," frequentative of consulere "to take counsel, meet and consider," originally probably "to call together," as in consuler
moon
"heavenly body which revolves about the earth monthly," Middle English mone, from Old English mona, from Proto-Germanic *menon- (source also of Old Saxon and Old High German mano, Old Frisian mona, Old Norse mani, Danish maane, Dutch maan, German Mond, Gothic mena "moon"), from P
grave
"excavation in earth for reception of a dead body," Old English græf "grave; ditch, trench; cave," from Proto-Germanic *grafa-/graba- (source also of Old Saxon graf, Old Frisian gref, Old High German grab "grave, tomb;" Old Norse gröf "cave," Gothic graba "ditch"), cognate with O
abortion
1540s, "the expulsion of the fetus before it is viable," originally of deliberate as well as unintended miscarriages; from Latin abortionem (nominative abortio) "miscarriage; abortion, procuring of an untimely birth," noun of action from past-participle stem of aboriri "to miscar
remote
mid-15c., "distant in place, apart, removed, not near," from Latin remotus "afar off, remote, distant in place," past participle of removere "move back or away, take away, put out of view, subtract," from re- "back, away" (see re-) + movere "to move" (from PIE root *meue- "to pus

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