Bitter; sad, a symbolical name which Naomi gave to herself because of her misfortunes (Ruth 1:20).

Noah Webster's New International Dictionary of the English Language

1. (n.) The principal or ruling evil spirit.

2. (n.) A female demon who torments people in sleep by crouching on their chests or stomachs, or by causing terrifying visions.

3. (n.) The Patagonian cavy (Dolichotis Patagonicus).