Word Origin & History
cow (n.)
O.E. cu, from P.Gmc. *kwon, earlier *kwom, from PIE *gwous (cf. Skt. gaus, Gk. bous, L. bov-), perhaps ult. imitative of lowing (cf. Sumerian gu, Chinese ngu, ngo "ox"). In Gmc., of females only; in other languages, of either gender. Cowhand is first attested 1852 in Amer.Eng.; cowboy is from 1725, originally "a boy who tends cows;" Western U.S. sense from 1849, as an adj. meaning "reckless," 1920s; cowlick is from 1598. Cowpoke (1881) was originally restricted to the cowboys who prodded cattle onto railroad cars with long poles.