- whelm (v.)
[whelm 词源字典]
- early 14c., probably from a parallel form of Old English -hwielfan (West Saxon), -hwelfan (Mercian), in ahwelfan "cover over;" probably altered by association with Old English helmian "to cover," from Proto-Germanic *hwalbjan, from PIE *kwelp- "to arch" (see gulf (n.)).[whelm etymology, whelm origin, 英语词源]