noun
also wer·wolf ˈwi(ə)rˌwu̇lf, ˈwər-, ˈwe(ə)r-, ˈwiəˌw-, ˈwə̄ˌw-, ˈweəˌw-
( plural were·wolves -lvz)
Etymology: Middle English, from Old English werewulf, werwulf; akin to Middle Dutch weerwolf, Old High German werwolf; all from a prehistoric West Germanic compound whose constituents are represented by Old English wer man and Old English wulf wolf — more at wolf
1. : a person transformed temporarily or permanently into a wolf or capable of assuming a wolf's form : lycanthrope
2. : a person whose cunning savagery suggests that of a werewolf