Word Origin & History
bottomO.E. botm, bodan "ground, soil, foundation, lowest part," from P.Gmc. *buthm- (cf. O.Fris. boden "soil," O.N. botn, Du. bodem, O.H.G. bodam, Ger. Boden "ground, earth, soil"), from PIE base *bhu(n)d(h)- (cf. Skt. budhnah, Avestan buna- "bottom," Gk. pythmen "foundation," L. fundus "bottom, piece of land,
farm," O.Ir. bond "sole of the foot"). Meaning "posterior of a man" is from 1794; the verb "to reach the bottom of" is from 1808. Bottom dollar "the last dollar one has" is from 1882.