bow (v.) Look up bow at Dictionary.com
O.E. bugan "to bend, to bend the body in condescension," also "to turn back" (class II strong verb; past tense beag, pp. bogen), from P.Gmc. *bugon (cf. M.L.G. bugen, O.H.G. biogan, Goth. biugan "to bend," O.N. boginn "bent"), from *beugen, from PIE base *bheugh- (cf. Skt. bhujati "bends, thrusts aside"). The noun is first recorded 1656. Bow out "withdraw" is from 1942.
bow (n1.) Look up bow at Dictionary.com
"weapon," O.E. boga "archery bow, arch, rainbow," from P.Gmc. *bugon (see bow (v.)). The sense of "a looped knot" is from 1547. The musician's bow (1580) was formerly curved like the archer's. bowlegged is attested from 1552.
bow (n2.) Look up bow at Dictionary.com
"front of a ship," 1342, from O.N. bogr or M.Du. boech "bow of a ship," lit. "shoulder (of an animal)," the connecting notion being "the shoulders of the ship." See bough.