AlgolyoudaoicibaDictYouDict[Algol 词源字典]
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.[Algol etymology, Algol origin, 英语词源]
B movie (n.)youdaoicibaDictYouDict
by 1939, usually said to be so called from being the second, or supporting, film in a double feature. Some film industry sources say it was so called for being the second of the two films major studios generally made in a year, and the one cast with less headline talent and released with less promotion. And early usage varies with grade-B movie, suggesting a perceived association with quality.
blue (1)youdaoicibaDictYouDict
c. 1300, bleu, blwe, etc., from Old French blo "pale, pallid, wan, light-colored; blond; discolored; blue, blue-gray," from Frankish *blao or some other Germanic source, from Proto-Germanic *blæwaz (cognates: Old English blaw, Old Saxon and Old High German blao, Danish blaa, Swedish blå, Old Frisian blau, Middle Dutch bla, Dutch blauw, German blau "blue"), from PIE *bhle-was "light-colored, blue, blond, yellow," from PIE root bhel- (1) "to shine, flash" (see bleach (v.)).

The same PIE root yielded Latin flavus "yellow," Old Spanish blavo "yellowish-gray," Greek phalos "white," Welsh blawr "gray," Old Norse bla "livid" (the meaning in black and blue), showing the usual slippery definition of color words in Indo-European The present spelling is since 16c., from French influence (Modern French bleu).
The exact color to which the Gmc. term applies varies in the older dialects; M.H.G. bla is also 'yellow,' whereas the Scandinavian words may refer esp. to a deep, swarthy black, e.g. O.N. blamaðr, N.Icel. blamaður 'Negro' [Buck]



Few words enter more largely into the composition of slang, and colloquialisms bordering on slang, than does the word BLUE. Expressive alike of the utmost contempt, as of all that men hold dearest and love best, its manifold combinations, in ever varying shades of meaning, greet the philologist at every turn. [John S. Farmer, "Slang and Its Analogues Past and Present," 1890, p.252]
The color of constancy since Chaucer at least, but apparently for no deeper reason than the rhyme in true blue (c. 1500). From early times blue was the distinctive color of the dress of servants, which may be the reason police uniforms are blue, a tradition Farmer dates to Elizabethan times. For blue ribbon see cordon bleu under cordon. Blue whale attested from 1851, so called for its color. The flower name blue bell is recorded by 1570s. Blue streak, of something resembling a bolt of lightning (for quickness, intensity, etc.) is from 1830, U.S. Western slang.

Many Indo-European languages seem to have had a word to describe the color of the sea, encompasing blue and green and gray; such as Irish glass (see Chloe); Old English hæwen "blue, gray," related to har (see hoar); Serbo-Croatian sinji "gray-blue, sea-green;" Lithuanian šyvas, Russian sivyj "gray."
creole (n.)youdaoicibaDictYouDict
c. 1600, from French créole (17c.), from Spanish criollo "person native to a locality," from Portuguese crioulo, diminutive of cria "person (especially a servant) raised in one's house," from criar "to raise or bring up," from Latin creare "to produce, create" (see create).

The exact sense varies with local use. Originally with no connotation of color or race; Fowler (1926) writes: "Creole does not imply mixture of race, but denotes a person either of European or (now rarely) of negro descent born and naturalized in certain West Indian and American countries." In U.S. use, applied to descendants of French and Spanish settlers in Louisiana from at least 1792. Of languages, from 1879. As an adjective, from 1748.
magpie (n.)youdaoicibaDictYouDict
the common European bird, known for its chattering, c. 1600, earlier simply pie (early 13c.); first element from Mag, nickname for Margaret, long used in proverbial and slang English for qualities associated generally with women, especially in this case "idle chattering" (as in Magge tales "tall tales, nonsense," early 15c.; also compare French margot "magpie," from Margot, pet form of Marguerite).

Second element, pie, is the earlier name of the bird, from Old French pie, from Latin pica "magpie," fem. of picus "woodpecker," from PIE root *(s)peik- "woodpecker, magpie" (cognates: Umbrian peica "magpie," Sanskrit pikah "Indian cuckoo," Old Norse spætr, German Specht "woodpecker"); possibly from PIE root *pi-, denoting pointedness, of the beak, perhaps, but the magpie also has a long, pointed tail. The birds are proverbial for pilfering and hoarding, can be taught to speak, and have been regarded since the Middle Ages as ill omens.
Whan pyes chatter vpon a house it is a sygne of ryghte euyll tydynges. [1507]
Divination by number of magpies is attested from c. 1780 in Lincolnshire; the rhyme varies from place to place, the only consistency being that one is bad, two are good.
movable (adj.)youdaoicibaDictYouDict
also moveable, late 14c., "disposed to movement;" c. 1400, "capable of being moved," from Old French movable, from moveir (see move (v.)). A moveable feast (early 15c.) is one in the Church calendar which, though always on the same day of the week, varies its date from year to year. Related: Movability.
ovarian (adj.)youdaoicibaDictYouDict
"pertaining to an ovary or the ovaries," 1810, see ovary + -ian.
regiment (n.)youdaoicibaDictYouDict
late 14c., "government, rule, control," from Old French regiment "government, rule" (14c.), from Late Latin regimentum "rule, direction," from Latin regere "to rule" (see regal). Meaning "unit of an army" first recorded 1570s (originally the reference was to permanent organization and discipline), from French. The exact number in the unit varies over time and place.
rope (n.)youdaoicibaDictYouDict
Old English rap "rope, cord, cable," from Proto-Germanic *raipaz (cognates: Old Norse reip, West Frisian reap, Middle Dutch, Dutch reep "rope," Old Frisian silrap "shoe-thong," Gothic skauda-raip "shoe-lace," Old High German, German reif "ring, hoop"). Technically, only cordage above one inch in circumference and below 10 (bigger-around than that is a cable). Nautical use varies. Finnish raippa "hoop, rope, twig" is a Germanic loan-word.

To know the ropes (1840, Dana) originally is a seaman's term. Phrase on the ropes "defeated" is attested from 1924, a figurative extension from the fight ring, where ropes figure from 1829. To be at the end of (one's) rope "out of resources and options" is first attested 1680s. Formerly also in many slang and extended uses related to punishment by hanging, such as John Roper's window "a noose," rope-ripe "deserving to be hanged," both 16c. To give someone (enough) rope (to hang himself) is from 1650s.
spay (v.)youdaoicibaDictYouDict
early 15c., "stab with a sword, kill," also "remove the ovaries of (a hunting dog)," from Anglo-French espeier "cut with a sword," from Middle French espeer, from Old French espee "sword" (French épée), from Latin spatha "broad, flat weapon or tool," from Greek spathe "broad blade" (see spade (n.1)). Compare Greek spadon "eunuch." Related: Spayed; spaying.
ultramontane (adj.)youdaoicibaDictYouDict
1590s, from Middle French ultramontain "beyond the mountains" (especially the Alps), from Old French (early 14c.), from Latin ultra "beyond" (see ultra-) + stem of mons (see mount (n.)). Used especially of papal authority, though "connotation varies according to the position of the speaker or writer." [Weekley]
fallopian tubeyoudaoicibaDictYouDict
"(In a female mammal) either of a pair of tubes along which eggs travel from the ovaries to the uterus", Early 18th century: from Fallopius, Latinized form of the name of Gabriello Fallopio (1523–62), the Italian anatomist who first described them.
oophorectomyyoudaoicibaDictYouDict
"Surgical removal of one or both ovaries; ovariectomy", Late 19th century: from modern Latin oophoron 'ovary' (from Greek ōophoros 'egg-bearing') + -ectomy.
ByoudaoicibaDictYouDict

second letter of the Latin alphabet, corresponding to Greek beta, Phoenician beth, literally "house." It "has nothing of that variety of pronunciation shown by most English letters" [Century Dictionary]. The Germanic "b" is said to represent a "bh" sound in Proto-Indo-European, which continued as "bh" in Sanskrit, became "ph" in Greek (brother/Greek phrater; bear (v.)/Greek pherein) and "f" in Latin (frater, ferre).

Often indicating "second in order." B-movie is by 1939, usually said to be so called from being the second, or supporting, film in a double feature. Some film industry sources say it was so called for being the second of the two films major studios generally made in a year, and the one cast with less headline talent and released with less promotion. And early usage varies with grade-B movie, suggesting a perceived association with quality.

B-side of a gramophone single is by 1962 (flip-side is by 1949). B-girl, abbreviation of bar girl, U.S. slang for a woman paid to encourage customers at a bar to buy her drinks, is by 1936.