a person changed into a wolf, or one capable of assuming the form of a wolf at will; lycanthrope
: also sp. ˈwerˌwolfWord forms: pluralˈwerˌwolves
Word origin
ME werwolf < OE werwulf < wer, man < IE *wiros, man (prob. orig., “the strong one” < base *wei-, to be strong > L vis, power, vir, man) + OE wulf, wolf