bough

Từ điển Oxford Advanced Learner 8th

bough [bough boughs] BrE [baʊ] NAmE [baʊ] noun (formal or literary)
a large branch of a tree

Word Origin:
Old English bōg, bōh ‘bough or shoulder’, of Germanic origin; related to Dutch boeg ‘shoulders or ship's bow’, German Bug ‘ship's bow’ and ‘horse's hock or shoulder’, also to ↑bow ¹.