Old English botm, bodan "ground, soil, foundation, lowest or deepest part of anything," from Proto-Germanic *buthm- (source also of Old Frisian boden "soil," Old Norse botn, Dutch bodem, Old High German bodam, German Boden "ground, earth, soil"). This is perhaps from PIE root *bhudhno- "bottom" (source also of Sanskrit budhnah, Avestan buna- "bottom," Greek pythmen "foundation," Latin fundus "bottom, piece of land, farm," Old Irish bond "sole of the foot").
Meaning "fundamental character, essence" is from 1570s; to get to the bottom of some matter is from 1773. Meaning "posterior of a person" (the sitting part) is from 1794. Bottoms up as a call to finish one's drink is from 1875. Bottom dollar "the last dollar one has" is from 1857. To do or feel something from the bottom of (one's) heart is from 1540s. Bottom-feeder, originally of fishes, is from 1866.
early 15c., "pertaining to music;" mid-15c., "tuneful, harmonious;" late 15c., "adept at making music," from Medieval Latin musicalis, from Latin musica (see music). Related: Musically. Musical box is from 1829. Children's or parlor game musical chairs is attested from 1862, hence use of musical as a modifier meaning "changing rapidly from one to another possessor" (1924).
Instrumental and vocal music, the quadrille and country-dance, occupy a portion of the time. No waltzing is however permitted. After dancing, round games follow, as Terza, "The Post," Musical Chairs, Cross Questions, all tending to amuse and promote exercise, until the partial extinguishing of the gas, at ten p.m., gives warning of approaching bedtime. [The Rev. R. Wodrow Thomson, "Ben Rhydding, the Asclepia of England," 1862]
In mid-19c. makers of musical boxes also advertised musical chairs, "playing beautiful tunes simply by the weight of the person sitting in them."
in reference to the branch of Turks which founded and ruled the Ottoman Empire, 1580s (n.), c. 1600 (adj.), from French Ottoman via Italian Ottomano, ultimately from Arabic 'Uthmani "of or belonging to 'Uthman," Arabic masc. proper name, which in Turkish is pronounced Othman (see Osmanli). The founder of the dynasty reigned 1259-1326. Because -i was a plural inflection in Italian, the ending of the word was altered by formation of a new false singular. Byron used the more correct form Othman (perhaps for the sake of metrics as well as accuracy), and a few writers have followed him.
The type of couch or cushioned seat without back or arms (used in drawing-rooms and sitting-rooms) was so called by 1806, because one reclines on it, which was associated with Eastern customs (see couch (n.1)). By 1849 the word was extended to a small version of this used as a footstool or low seat.
1640s, "a gathering into a bundle," verbal noun from bundle (v.). Meaning "sharing a bed for the night, fully dressed, wrapped up with someone of the opposite sex" (1782) is a former local custom in New England (especially Connecticut and southeastern Massachusetts). It was noted there from about 1750s and often regarded by outsiders as grossly immoral, but New Englanders wrote defenses of it and claimed it was practiced elsewhere, too. It seems to have died out with the 18th century.
I am no advocate for temptation; yet must say, that bundling has prevailed 160 years in New England, and, I verily believe, with ten times more chastity than the sitting on a sofa. I had daughters, and speak from near forty years' experience. Bundling takes place only in cold seasons of the year—the sofa in summer is more dangerous than the bed in winter. [The Rev. Samuel Peters, "A general history of Connecticut," 1782]
With past tense sat, formerly also set, now restricted to dialect, and sate, now archaic; and past participle sat, formerly sitten. In reference to a legislative assembly, from 1510s. Meaning "to baby-sit" is recorded from 1966.
To sit back "be inactive" is from 1943. To sit on one's hands was originally "to withhold applause" (1926); later, "to do nothing" (1959). To sit around "be idle, do nothing" is 1915, American English. To sit out "not take part" is from 1650s. Sitting pretty is from 1916.