vole definition by Webster's New World
Origin: earlier vole mouse ; from Scandinavian as in Old Norse vǫllr, meadow, field (; from Proto-Germanic an unverified form walthu- from source weald, wold, German wald, ; from Indo-European an unverified form wel-, shaggy hair, grass) plush mouse
Origin: French probably ; from voler, to fly ; from Classical Latin volare
vole definition by American Heritage Dictionary
Origin: Short for obsolete volemouse, perhaps from Norwegian *vollmus : Old Norse völlr, field + Old Norse mūs, mouse.
Origin: French, probably from voler, to fly, from Old French, from Latin volāre, to fly.