gnawen

Etymology
From, from ,.

Verb

 * 1) To gnaw; to persistently bite or chew.
 * 2) To eat or eliminate through gnawing.
 * 3) To impale or wound; to pierce the skin.
 * 4) To wear; to cause corrosion or wastage.
 * 5)  To anguish or worry; to cause concern.
 * 6)  To mock, insult or slight; to speak negatively of.
 * 7)  To feel anguish, worry, or concern.
 * 8)  To ruin or ravage.

Usage notes

 * This verb is occasionally weak in Middle English, but usually remains strong.