"to quickly bow the head," late 14c., of unknown origin, probably an Old English word, but not recorded; perhaps related to Old High German hnoton "to shake," from Proto-Germanic *hnudan. Meaning "to drift in and out of consciousness while on drugs" is attested from 1968. Related: Nodded; nodding. A nodding acquaintance (1711) is one you know just well enough to greet with a nod.
nod (n.)
mid-15c., from nod (v.). Land of Nod "sleep" is a pun on the biblical place name (Gen. iv:16).
双语例句
1. He turned with a little nod and I watched him walk away.
他边点了点头边转过身，我看着他走了。
来自柯林斯例句
2. "Probably," agreed Hunter, with a slow nod of his head.
亨特慢慢点了点头,表示赞同地说:“很有可能.”
来自柯林斯例句
3. A quick nod of approval would have done nicely.