bronchitis (n.)youdaoicibaDictYouDict[bronchitis 词源字典]
coined in Modern Latin 1808 by Charles Bedham, from bronchia "the bronchial tubes" (plural; see bronchial) + -itis "inflammation."[bronchitis etymology, bronchitis origin, 英语词源]
bronchoscopy (n.)youdaoicibaDictYouDict
from German bronchoskopie (1898), from Latinized comb. form of Greek bronkhia "the bronchial tubes" (plural; see bronchial); also see -scope.
bronchus (n.)youdaoicibaDictYouDict
1706 (plural bronchi), from Greek bronkhos "the wind pipe" (see bronchial).
bronco (n.)youdaoicibaDictYouDict
also broncho, 1850, American English, "untamed or half-tamed horse," from noun use of Spanish bronco (adj.) "rough, rude," originally a noun meaning "a knot in wood," perhaps from Vulgar Latin *bruncus "a knot, projection," apparently from a cross of Latin broccus "projecting" (see broach (n.)) + truncus "trunk of a tree" (see trunk (n.)). Bronco-buster is attested from 1886.
brontosaurus (n.)youdaoicibaDictYouDict
1879, Modern Latin, from Greek bronte "thunder" (perhaps from PIE imitative root *bhrem- "to growl") + -saurus. Brontes was the name of one of the Cyclopes in Greek mythology.
BronxyoudaoicibaDictYouDict
named for Jonas Bronck, who settled there in 1641.
Jonas Bronck, who arrived at New Amsterdam in 1639, and whose name is perpetuated in Bronx Borough, Bronx Park, Bronxville -- in New York -- was a Scandinavian, in all probability a Dane and originally, as it seems, from Thorshavn, Faroe Islands, where his father was a pastor in the Lutheran Church. Faroe then belonged to Denmark-Norway and had been settled by Norwegians. The official language of the island in Bronck's days was Danish. ... Bronck may have been a Swede if we judge by the name alone for the name of Brunke is well known in Sweden. [John Oluf Evjen, "Scandinavian immigrants in New York, 1630-1674," Minneapolis, 1916]
Bronx cheer first recorded 1929.
bronze (n.)youdaoicibaDictYouDict
1721, "alloy of copper and tin," from French bronze, from Italian bronzo, from Medieval Latin bronzium. Perhaps cognate (via notion of color) with Venetian bronza "glowing coals," or German brunst "fire." Perhaps influenced by Latin Brundisium the Italian town of Brindisi (Pliny writes of aes Brundusinum). Perhaps ultimately from Persian birinj "copper."

In Middle English, the distinction between bronze (copper-tin alloy) and brass (copper-zinc alloy) was not clear, and both were called bras. A bronze medal was given to a third-place finisher since at least 1852. The archaeological Bronze Age (1865) falls between the Stone and Iron ages, and is a reference to the principal material for making weapons and ornaments.
bronze (v.)youdaoicibaDictYouDict
1640s, literally, 1726 figuratively, from French bronzer (16c.) or else from bronze (n.). Related: Bronzed; bronzing. Meaning "to make to be bronze in color" is from 1792.
brooch (n.)youdaoicibaDictYouDict
early 13c., from Old French broche "long needle" (see broach (n.)). Specialized meaning led 14c. to distinct spelling.
brood (n.)youdaoicibaDictYouDict
Old English brod "brood, fetus, hatchling," from Proto-Germanic *brod (cognates: Middle Dutch broet, Old High German bruot, German Brut "brood"), literally "that which is hatched by heat," from *bro- "to warm, heat," from PIE *bhre- "burn, heat, incubate," from root *bhreue- "to boil, bubble, effervesce, burn" (see brew (v.)).
brood (v.)youdaoicibaDictYouDict
"sit on eggs, hatch," mid-15c., from brood (n.). The figurative meaning ("to incubate in the mind") is first recorded 1570s, from notion of "nursing" one's anger, resentment, etc. Related: Brooded; brooding.
brooding (adj.)youdaoicibaDictYouDict
1640s, "hovering, overhanging" (as a mother bird does her nest), from present participle of brood (v.); meaning "that dwells moodily" first attested 1818 (in "Frankenstein").
brooding (n.)youdaoicibaDictYouDict
"action of incubating," c. 1400, verbal noun from brood (v.). Figuratively (of weather, etc.) from 1805; of mental fixations by 1873. Related: Broodingly.
broody (adj.)youdaoicibaDictYouDict
1510s, "apt to breed," from brood (v.) + -y (2). Figuratively, of persons, from 1851. Also, in modern use, sometimes "full of maternal yearning." Related: Broodily; broodiness.
brook (n.)youdaoicibaDictYouDict
"small stream," Old English broc "flowing stream, torrest," of obscure origin, probably from Proto-Germanic *broka- which yielded words in German (Bruch) and Dutch (broek) that have a sense of "marsh." In Sussex and Kent, it means "water-meadow," and in plural, "low, marshy ground."
brook (v.)youdaoicibaDictYouDict
"to endure," Old English brucan "use, enjoy, possess; eat; cohabit with," from Proto-Germanic *bruk- "to make use of, enjoy" (cognates: Old Saxon brukan, Old Frisian bruka, Old High German bruhhan, German brauchen "to use," Gothic brukjan), from PIE root *bhrug- "to make use of, have enjoyment of" (cognates: Latin fructus). Sense of "use" applied to food led to "be able to digest," and by 16c. to "tolerate."
BrookeyoudaoicibaDictYouDict
fem. proper name, rare in U.S. before 1965, popular 1980s, 1990s.
BrooklynyoudaoicibaDictYouDict
New York City borough, named for village founded there 1646 and named for Dutch township of Breukelen near Utrecht; from Old High German bruoh "moor, marshland;" spelling of U.S. place name influenced by brook (n.), which probably is distantly related.
broom (n.)youdaoicibaDictYouDict
Old English brom "broom, brushwood," the common flowering shrub whose twigs were tied together to make a tool for sweeping, from Proto-Germanic *bræmaz "thorny bush" (cognates: Dutch braam, German Brombeere "blackberry"), from PIE root *bh(e)rem- "to project, a point."

Traditionally, both the flowers and sweeping with broom twigs were considered unlucky in May (Suffolk, Sussex, Wiltshire, etc.). The witch's flying broomstick originally was one among many such objects (pitchfork, trough, bowl), but the broomstick became fixed as the popular tool of supernatural flight via engravings from a famous Lancashire witch trial of 1612.
brose (n.)youdaoicibaDictYouDict
1650s, Scottish, earlier browes, from Old French broez, nominative of broet (13c.) "stew, soup made from meat broth," diminutive of breu, from Medieval Latin brodium, from Old High German brod "broth" (see broth).