ayurvedic (adj.)
1917, "pertaining to traditional Hindu science of medicine," from ayurveda "science of life," from ayur "life" + veda "knowledge" (see Veda).
azalea (n.)
1753, coined by Linnaeus from the fem. of Greek azaleos "dry," related to azein "to dry up" (see ash (n.1)). The plant thrives in sandy soil.
Azerbaijan
country name, of unknown origin, perhaps from Old Persian Aturpatakan, from Greek Atropatene, from the Persian satrap Atropates, who ruled there in the time of Alexander the Great; or from local azer "fire" + baydjan (Iranian baykan) "guardian," in reference to fire-worship.
azimuth (n.)
"distance of a star from the north or south point of the meridian," late 14c., from Old French azimut, from Arabic as-sumut "the ways," plural of as-samt "the way, direction" (see zenith).
azo-
word-forming element denoting the presence of nitrogen, 1879, from comb. form of azote, the old term for "nitrogen" (from Greek a- "not, without" (see a- (3)) + zoion "a living being;" see zoo); coined in French by Lavoisier & de Morveau because living things cannot survive in the gas.
azoic (adj.)
1854, with -ic + Greek azoos, from a- "not, without" (see a- (3)) + zoon "animal" (see zoo).
azotemia (n.)
1900, also azotaemia, from azot- (see azo-) + Greek haima "blood" (see -emia).
Aztec
1787, from Spanish Azteca, from Nahuatl aztecatl (plural aztecah), meaning "coming from Aztlan," name of their legendary place of origin, usually said to lie somewhere in what is now southwestern U.S.
azure (n.)
early 14c., from Old French azur, asur, a color name, from a false separation of Arabic (al)-lazaward "lapis lazuli," as though the -l- were the French article l'. The Arabic name is from Persian lajward, from Lajward, a place in Turkestan, mentioned by Marco Polo, where the stone was collected.