gnaw
//nɔː//
Verb
gnawInfinitive
gnawPresent tense
gnawedPast tense
gnawedPast participle
gnawingPresent participle
gnawsThird-person singular
1
To bite or chew on something persistently, often wearing it away gradually.
The dog gnawed on the bone for hours.
2
To cause persistent distress or anxiety; to trouble or torment mentally.
Guilt gnawed at her conscience for weeks after the incident.