Английский разговорный словарь (основной) - gnaw

nɔ: v. (past part. gnawed or gnawn) 1 a tr. (usu. foll. by away, off, in two, etc.) bite persistently; wear away by biting. b intr. (often foll. by at, into) bite, nibble. 2 a intr. (often foll. by at, into) (of a destructive agent, pain, fear, etc.) corrode; waste away; consume; torture. b tr. corrode, consume, torture, etc. with pain, fear, etc. (was gnawed by doubt). 3 tr. (as gnawing adj.) persistent; worrying. øøgnawingly adv. [OE gnagen, ult. imit.]