from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To bite, chew on, or erode with the teeth.
- transitive v. To produce by gnawing: gnaw a hole. See Synonyms at bite.
- transitive v. To erode or diminish gradually as if by gnawing: waves gnawing the rocky shore.
- transitive v. To afflict or worry persistently: fear that constantly gnawed me.
- intransitive v. To bite or chew persistently: The dog gnawed at the bone.
- intransitive v. To cause erosion or gradual diminishment.
- intransitive v. To cause persistent worry or pain: Hunger gnawed at the prisoners.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To bite something persistently.
- v. To produce excessive anxiety or worry.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To bite, as something hard or tough, which is not readily separated or crushed; to bite off little by little, with effort; to wear or eat away by scraping or continuous biting with the teeth; to nibble at.
- transitive v. To bite in agony or rage.
- transitive v. To corrode; to fret away; to waste.
- transitive v. To trouble in a constant manner; to plague; to worry; to vex; -- usually used with at.
- intransitive v. To use the teeth in biting; to bite with repeated effort, as in eating or removing with the teeth something hard, unwieldy, or unmanageable.
from The Century Dictionary and Cyclopedia
- To bite off little by little; bite or scrape away with the front teeth; erode or eat into.
- To bite upon, as in close thought, vexation, rage, etc.
- To wear away as if by continued biting; consume; fret; waste.
- To act by or as if by continual biting away of small fragments or portions.
- To bite or nibble at the hook, as fish.
- n. A gnawing.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. become ground down or deteriorate
- v. bite or chew on with the teeth
Middle English gnauen, from Old English gnagan.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old English gnagan, from Proto-Germanic *gnaganan. Cognate with Dutch knagen, German nagen, Swedish gnaga. (Wiktionary)