badeyoudaoicibaDictYouDict[bade 词源字典]
Old English bæd, past tense of bid (v.).[bade etymology, bade origin, 英语词源]
badge (n.)youdaoicibaDictYouDict
mid-14c., perhaps from Anglo-French bage or from Anglo-Latin bagis, plural of bagia "emblem," all of unknown origin.
badger (n.)youdaoicibaDictYouDict
1520s, perhaps from bage "badge" (see badge) + -ard "one who carries some action or possesses some quality," suffix related to Middle High German -hart "bold" (see -ard). If so, the central notion is the badge-like white blaze on the animal's forehead (as in French blaireau "badger," from Old French blarel, from bler "marked with a white spot;" also obsolete Middle English bauson "badger," from Old French bauzan, literally "black-and-white spotted"). But blaze (n.2) was the usual word for this.

An Old English name for the creature was the Celtic borrowing brock; also græg (Middle English grei, grey). In American English, the nickname of inhabitants or natives of Wisconsin (1833).
badger (v.)youdaoicibaDictYouDict
1790, from badger (n.), based on the behavior of the dogs in the medieval sport of badger-baiting, still practiced in 18c. England. Related: Badgered; badgering.
badinage (n.)youdaoicibaDictYouDict
"light railery," 1650s, from French badinage "playfulness, jesting," from badiner (v.) "to jest, joke," from badin "silly, jesting," from Old Provençal badar "to yawn, gape," from Late Latin badare "to gape," from *bat-, the root of abash.
badlands (n.)youdaoicibaDictYouDict
"arid, highly eroded regions of the western U.S.," 1852, from bad + land (n.). Applied to urban districts of crime and vice since 1892 (originally with reference to Chicago).
badly (adv.)youdaoicibaDictYouDict
c. 1300, "unluckily;" late 14c., "wickedly, evilly; poorly, inadequately," from bad + -ly (2).
badminton (n.)youdaoicibaDictYouDict
1874, from Badminton House, name of Gloucestershire estate of the Duke of Beaufort, where the game first was played in England, mid-19c., having been picked up by British officers from Indian poona. The place name is Old English Badimyncgtun (972), "estate of (a man called) Baduhelm."
badness (n.)youdaoicibaDictYouDict
late 14c., baddenesse; see bad + -ness.
BaedekeryoudaoicibaDictYouDict
"travel guide," 1863, from German printer and bookseller Karl Baedeker (1801-1859) whose popular travel guides began the custom of rating places with one to four stars. The Baedeker raids by the Luftwaffe in April and May 1942 targeted British cultural and historical sites.
baffle (v.)youdaoicibaDictYouDict
1540s, "to disgrace," perhaps a Scottish respelling of bauchle "to disgrace publicly" (especially a perjured knight), which is probably related to French bafouer "to abuse, hoodwink" (16c.), possibly from baf, a natural sound of disgust, like bah (compare German baff machen "to flabbergast"). Meaning "to bewilder, confuse" is from 1640s; that of "to defeat someone's efforts" is from 1670s. Related: Baffled; baffling.
baffle (n.)youdaoicibaDictYouDict
"shielding device," 1881, from baffle (v.).
bafflement (n.)youdaoicibaDictYouDict
1841, from baffle (v.) + -ment.
baffling (adj.)youdaoicibaDictYouDict
1783, "bewildering," present participle adjective from baffle (v.); earlier a sailor's adjective for winds that blow variously and make headway difficult (c. 1770s).
bag (n.)youdaoicibaDictYouDict
c. 1200, bagge, from Old Norse baggi or a similar Scandinavian source; not found in other Germanic languages, perhaps ultimately of Celtic origin. Disparaging slang for "woman" dates from 1924 (though various specialized senses of this are much older). Meaning "person's area of interest or expertise" is 1964, from Black English slang, from jazz sense of "category," probably via notion of putting something in a bag.

To be left holding the bag (and presumably nothing else), "cheated, swindled" is attested by 1793. Many figurative senses, such as the verb meaning "to kill game" (1814) and its colloquial extension to "catch, seize, steal" (1818) are from the notion of the game bag (late 15c.) into which the product of the hunt was placed. To let the cat out of the bag "reveal the secret" is from 1760.
bag (v.)youdaoicibaDictYouDict
mid-15c., "to swell out like a bag;" also "to put money in a bag," from bag (n.). Earliest verbal sense was "to be pregnant" (c. 1400). Of clothes, "to hang loosely," 1824. For sense "catch, seize, steal," see bag (n.). Related: Bagged; bagging.
bag-end (n.)youdaoicibaDictYouDict
"bottom of a bag," c. 1400, from bag (n.) + end (n.).
bagatelle (n.)youdaoicibaDictYouDict
1630s, "a trifle," from French bagatelle "knick-knack, bauble, trinket" (16c.), from Italian bagatella "a trifle," diminutive of Latin baca "berry." As "a piece of light music," it is attested from 1827.
bagel (n.)youdaoicibaDictYouDict
1919, from Yiddish beygl, from Middle High German boug- "ring, bracelet," from Old High German boug "a ring," related to Old English beag "ring" (in poetry, an Anglo-Saxon lord was beaggifa "ring-giver"), from Proto-Germanic *baugaz, from PIE root *bheug- (3) "to bend," with derivatives referring to bent, pliable, or curved objects (such as Old High German biogan "to bend;" see bow (v.)).
bagful (n.)youdaoicibaDictYouDict
c. 1300, bagge-ful, from bag (n.) + -ful.