muscle-man (n.)youdaoicibaDictYouDict[muscle-man 词源字典]
1929, originally "an underworld enforcer;" sense of "strong man" first attested 1952; from muscle (n.) + man (n.).[muscle-man etymology, muscle-man origin, 英语词源]
muscled (adj.)youdaoicibaDictYouDict
"having muscles (of a particular type)," 1640s, from muscle (n.).
MuscovyyoudaoicibaDictYouDict
from French Moscovie, from Modern Latin Moscovia, old name of Russia, from Russian Moskova "(Principality of) Moscow." In Muscovy duck (1650s) and certain other uses it is a corruption of musk. Related: Muscovite.
muscular (adj.)youdaoicibaDictYouDict
1680s, "pertaining to muscles," from Latin musculus (see muscle (n.)) + -ar. Earlier in same sense was musculous (early 15c.). Meaning "having well-developed muscles" is from 1736. Muscular Christianity (1857) is originally in reference to philosophy of Anglican clergyman and novelist Charles Kingsley (1819-1875). Muscular dystrophy attested from 1886.
muscularity (n.)youdaoicibaDictYouDict
1680s, from Modern Latin muscularis (from Latin musculus; see muscle (n.)) + -ity.
musculature (n.)youdaoicibaDictYouDict
"system of muscles," 1875, from French musculature, from Latin musculus (see muscle (n.)).
musculo-youdaoicibaDictYouDict
word-forming element meaning "involving or pertaining to muscles," from comb. form of Latin musculus "muscle" (see muscle (n.)).
musculoskeletal (adj.)youdaoicibaDictYouDict
1944, from musculo- + skeletal.
muse (v.)youdaoicibaDictYouDict
"to reflect, to be absorbed in thought," mid-14c., from Old French muser (12c.) "to ponder, dream, wonder; loiter, waste time," literally "to stand with one's nose in the air" (or, possibly, "to sniff about" like a dog who has lost the scent), from muse "muzzle," from Gallo-Roman *musa "snout," of unknown origin. Probably influenced in sense by muse (n.). Related: Mused; musing.
muse (n.)youdaoicibaDictYouDict
late 14c., protectors of the arts, from Old French Muse and directly from Latin Musa, from Greek Mousa, "the Muse," also "music, song," from PIE root *men- "to think, remember" (see mind (n.)). Meaning "inspiring goddess of a particular poet" is from late 14c. The traditional names and specialties of the nine Muses, daughters of Zeus and Mnemosyne, are: Calliope (epic poetry), Clio (history), Erato (love poetry, lyric art), Euterpe (music, especially flute), Melpomene (tragedy), Polymnia (hymns), Terpsichore (dance), Thalia (comedy), Urania (astronomy).
musette (n.)youdaoicibaDictYouDict
"small bagpipe," late 14c., from Old French musette "bagpipe" (13c.), from muser "to play the bagpipe, make music," from mus "mouth, muzzle," from Medieval Latin musum (see muzzle (n.)). As "a composition for a musette" from 1811, from French.
museum (n.)youdaoicibaDictYouDict
1610s, "the university building in Alexandria," from Latin museum "library, study," from Greek mouseion "place of study, library or museum, school of art or poetry," originally "a seat or shrine of the Muses," from Mousa "Muse" (see muse (n.)). Earliest use in reference to English institutions was of libraries (such as the British Museum); sense of "building to display objects" first recorded 1680s.
mush (n.)youdaoicibaDictYouDict
"kind of porridge," 1670s, in the American colonies, variant of mash (n.) "soft mixture." Meaning "anything soft and thick" is attested from 1824.
mush (interj.)youdaoicibaDictYouDict
command to sled dogs, first recorded 1862, as mouche, perhaps altered from French marchons! "advance!" (imperative of marcher "to march;" see march (v.)).
mush (v.)youdaoicibaDictYouDict
"to pound to a pulp," 1781, from mush (n.). Related: Mushed; mushing.
mushiness (n.)youdaoicibaDictYouDict
1890, from mushy + -ness. Figurative sense of "sentimentality" attested from 1946.
mushroom (n.)youdaoicibaDictYouDict
mid-15c., muscheron, musseroun (attested 1327 as a surname, John Mussheron), from Anglo-French musherun, Old French meisseron (11c., Modern French mousseron), perhaps from Late Latin mussirionem (nominative mussirio), though this might as well be borrowed from French. Barnhart says "of uncertain origin." Klein calls it "a word of pre-Latin origin, used in the North of France;" OED says it usually is held to be a derivative of French mousse "moss" (from Germanic), and Weekley agrees, saying it is properly "applied to variety which grows in moss," but Klein says they have "nothing in common." For the final -m Weekley refers to grogram, vellum, venom. Modern spelling is from 1560s.

Used figuratively for something or someone that makes a sudden appearance in full form from 1590s. In reference to the shape of clouds after explosions, etc., it is attested from 1916, though the actual phrase mushroom cloud does not appear until 1955.
mushroom (v.)youdaoicibaDictYouDict
"expand or increase rapidly," 1741, from mushroom (n.). Related: Mushroomed; mushrooming.
mushy (adj.)youdaoicibaDictYouDict
"soft, pulpy, 1839; "sentimental," 1870; from mush (n.) + -y (2). Mush (n.) in a transferred sense of "sentimentality" is attested from 1908.
music (n.)youdaoicibaDictYouDict
mid-13c., musike, from Old French musique (12c.) and directly from Latin musica "the art of music," also including poetry (also source of Spanish musica, Italian musica, Old High German mosica, German Musik, Dutch muziek, Danish musik), from Greek mousike (techne) "(art) of the Muses," from fem. of mousikos "pertaining to the Muses," from Mousa "Muse" (see muse (n.)). Modern spelling from 1630s. In classical Greece, any art in which the Muses presided, but especially music and lyric poetry.

The use of letters to denote music pitch probably is at least as old as ancient Greece, as their numbering system was ill-suited to the job. Natural scales begin at C (not A) because in ancient times the minor mode was more often used than the major one, and the natural minor scale begins at A.

Music box is from 1773, originally "barrel organ;" music hall is from 1842, especially "hall licensed for musical entertainment" (1857). To face the music "accept the consequences" is from 1850; the exact image is uncertain, one theory ties it to stage performers, another to cavalry horses having to be taught to stay calm while the regimental band plays. To make (beautiful) music with someone "have sexual intercourse" is from 1967.