blue 英 [blu:] 美 [blu]
n. 蓝色；[the blue(s)]布鲁斯（歌曲）（一种伤感的音乐 adj. 蓝色的；沮丧的，忧郁的
进行时:bluing 过去式:blued 过去分词:blued 第三人称单数:blues 名词复数:blues
- Among other things, blue is a color and a dreary mood. If the blue sky and ocean have turned gray and stormy, you might be blue because your day at the beach is ruined.
- n. 蓝色；[the blue(s)]布鲁斯（歌曲）（一种伤感的音乐
- adj. 蓝色的；沮丧的，忧郁的
1. a blue shirt
2. He'd been feeling blue all week.
- blue (adj.1) "of the color of the clear sky," c. 1300, bleu, blwe, etc., "sky-colored," also "livid, lead-colored," from Old French blo, bleu "pale, pallid, wan, light-colored; blond; discolored; blue, blue-gray," from Frankish *blao or some other Germanic source, from Proto-Germanic *blæwaz (source also of 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").
- blue (adj.2) "lewd, indecent" recorded from 1840 (in form blueness, in an essay of Carlyle's); the sense connection with the color name (see blue (adj.1)) is unclear, and is opposite to that in blue laws (q.v.). John Mactaggart's "Scottish Gallovidian Encyclopedia" (1824), containing odd words he had learned while growing up in Galloway and elsewhere in Scotland, has an entry for Thread o'Blue, "any little smutty touch in song-singing, chatting, or piece of writing." Farmer ["Slang and Its Analogues Past and Present," 1890] offers the theory that this meaning derives from the blue dress uniforms issued to harlots in houses of correction (from c. 1600), but he writes that the earlier slang authority John Camden Hotten "suggests it as coming from the French Bibliothèque Bleu, a series of books of very questionable character," and adds, from Hotten, that, "Books or conversation of an entirely opposite nature are said to be Brown or Quakerish, i.e., serious, grave, decent."
- blue (n.) "the color of the clear sky," c. 1300, from blue (adj.1). From late 15c. as "blue clothing." The blue is from 1640s as "the sky" (hence bolt from the blue "lightning," 1837); from 1821 as "the sea." In reference to a particular party which has chosen blue for its color, by 1835. "In most parts of England the Conservative party" [OED], but in 17c. it often was the Whig color (opposed to royal red).
- blue (v.) "to make blue," c. 1600, from blue (adj.1).