nape

From Middle English nape, naape, of uncertain origin. Possibly from Old French hanap (“goblet”), from Frankish *hnapp, from Proto-Germanic *hnappaz ( > Old English hnæpp, hnæp (“cup, bowl, goblet”)), as there is a hollow at the base of the skull. More at nap.

出典: Wiktionary「nape」（CC BY-SA 4.0）