Main Entry: war·lock

Pronunciation: \ˈwȯr-ˌläk\

Function: noun

Etymology: Middle English warloghe, from Old English wǣrloga one that breaks faith, the Devil, from wǣr faith, troth + -loga (from lēogan to lie); akin to Old English wǣr true — more at very, lie

Date: 14th century

1 : a man practicing the black arts : sorcerer — compare witch
2 : conjurer