英语词源字典 - 在线词源网站

alga (n.)[alga 词源字典]: see algae.[alga etymology, alga origin, 英语词源]
algae (n.): (plural), 1794, from alga (singular), 1550s, from Latin alga "seaweed," which is of uncertain origin, perhaps from a PIE root meaning "to putrefy, rot."
algal (adj.): 1846, see alga + -al (1).
algebra (n.): 1550s, from Medieval Latin algebra, from Arabic al jabr ("in vulgar pronunciation, al-jebr" [Klein]) "reunion of broken parts," as in computation, used 9c. by Baghdad mathematician Abu Ja'far Muhammad ibn Musa al-Khwarizmi as the title of his famous treatise on equations ("Kitab al-Jabr w'al-Muqabala" "Rules of Reintegration and Reduction"), which also introduced Arabic numerals to the West. The accent shifted 17c. from second syllable to first. The word was used in English 15c.-16c. to mean "bone-setting," probably from Arab medical men in Spain.
algebraic (adj.): 1660s, from algebra + -ic. Earlier was algebraical (1570s).
Algeria: North African country, named for Algiers, city chosen by the French as its capital when they colonized it in 1830 + Latinate "country" suffix -ia. The city name is Arabic al-Jazair, literally "the islands," in reference to four islands formerly off the coast but joined to the mainland since 1525. A resident of the place formerly was an Algerine (1650s), and the word was practically synonymous with "pirate" in English and U.S. usage early 19c.
Algernon: masc. proper name, literally "with mustaches," from Old French als gernons, from a les "to the, with the" + gernon, variant of grenon "mustache," from Vulgar Latin *granonem, from a Germanic source (compare Old English granu "mustache").
Algol: Beta Persei, variable star in the constellation Perseus, late 14c., literally "the Demon," from Arabic al-ghul "the demon" (see ghoul). It corresponds, in modern representations of the constellation, to the gorgon's head Perseus is holding, but it probably was so called because it visibly varies in brightness every three days, which sets it apart from other bright stars. The computer language (1959) is a contraction of algo(rithmic) l(anguage); see algorithm.
Algonquian: also Algonkian, 1885, an ethnologist's word, modified from Algonquin + -ian. Both forms of the name have been used as adjectives and nouns. An American-Indian language family spread over a wide area of northeast and north-central North America, from Nova Scotia (Micmac) to Montana (Cheyenne).
Algonquin: one of an Indian people living near the Ottawa River in Canada, 1620s, from French Algonquin, perhaps a contraction of Algoumequin, from Micmac algoomeaking "at the place of spearing fish and eels." But Bright suggests Maliseet (Algonquian) elægomogwik "they are our relatives or allies."

Algonquian (1885) was the name taken by ethnologists to describe a large group of North American Indian peoples, including this tribe. Algonquin Hotel (59 W. 44th St., Manhattan) opened 1902 and named by manager Frank Case for the tribe that had lived in that area. A circle of journalists, authors, critics, and wits began meeting there daily in 1919 and continued through the twenties; they called themselves "The Vicious Circle," but to others they became "The Round Table."
algorithm (n.): 1690s, from French algorithme, refashioned (under mistaken connection with Greek arithmos "number") from Old French algorisme "the Arabic numeral system" (13c.), from Medieval Latin algorismus, a mangled transliteration of Arabic al-Khwarizmi "native of Khwarazm," surname of the mathematician whose works introduced sophisticated mathematics to the West (see algebra). The earlier form in Middle English was algorism (early 13c.), from Old French.
algorithmic (adj.): by 1799, from algorithm + -ic. In reference to symbolic rules or language, by 1881.
Alhambra: palace of the Moorish kings in Granada, Spanish, from Arabic (al kal'at) al hamra "the red (castle)," from fem. of ahmuru "red." So called for the sun-dried bricks of which its outer walls were built.
alias (adv.): mid-15c., "otherwise called," from Latin alias "at another time, in another way," from alius "(an)other," from PIE *al- (1) "beyond" (cognates: Sanskrit anya "other, different," Avestan anya-, Armenian ail, Greek allos "another," Gothic aljis "other," Old English elles "otherwise, else," Modern English else).
alias (n.): "assumed name," c. 1600, from alias (adv.).
alibi (n.): 1743, "the plea of having been elsewhere when an action took place," from Latin alibi "elsewhere, somewhere else," locative of alius "(an)other" (see alias (adv.)). The weakened sense of "excuse" is attested since 1912, but technically any proof of innocence that doesn't involve being "elsewhere" is an excuse, not an alibi.
Alice: fem. proper name, from Old French Aliz, from Old High German Adalhaid, literally "nobility, of noble kind" (see Adelaide). Among the top 20 most popular names for girls born in the U.S. from c. 1880-1920. "Alice's Adventures in Wonderland" published 1865.
alien (adj.): mid-14c., "strange, foreign," from Old French alien "alien, strange, foreign; an alien, stranger, foreigner," from Latin alienus "of or belonging to another, foreign, alien, strange," also, as a noun, "a stranger, foreigner," adjectival form of alius "(an)other" (see alias (adv.)). Meaning "not of the Earth" first recorded 1920. An alien priory (c. 1500) is one owing obedience to a mother abbey in a foreign country.
alien (n.): "foreigner, citizen of a foreign land," from alien (adj.). In the science fiction sense, from 1953.
alienable (adj.): 1610s; see alien (adj.) + -able. Related: Alienability.