nook

From Middle English noke, nok (“nook, corner, angle”), of uncertain origin. Perhaps from Old English hnoc, hnocc (“hook, angle”), from Proto-Germanic *hnukkaz, *hnukkô (“a bend”), from Proto-Indo-European *knewg- (“to turn, press”), from Proto-Indo-European *ken- (“to pinch, press, bend”).

If so, then also related to Scots nok (“small hook”), Norwegian dialectal nok, nokke (“hook, angle, bent object”), Danish nok (“hook”), Swedish nock (“ridge”), Faroese nokki (“crook”), Icelandic hnokki (“hook”), Dutch nok (“ridge”) or Dutch hoek (“corner”), Low German Nocke (“tip”), Old Norse hnúka (“to bend, crouch”), Old English ġehnycned (“drawn, pinched, wrinkled”). Also cognate with Scots neuk, nuk (“corner, angle of a square, angular object”).