- bough
- O.E. bog "shoulder, arm," extended O.E. to "twig, branch" (cf. limb), from P.Gmc. *bogaz (cf. O.N. bogr "shoulder," O.H.G. buog, Ger. Bug "shoulder, hock, joint"), from PIE *bhagus "elbow, forearm" (cf. Skt. bahus "arm," Armenian bazuk, Gk. pakhys "forearm"). The "limb of a tree" sense is peculiar to English.