War″lock (?), n. [OE. warloghe a deceiver, a name or the Devil, AS. w�rloga a belier or breaker of his agreement, word, or pledge; w�r covenant, troth (aki� to L. verus true; see Very) + loga a liar (in comp.), leógan to lie. See 3d Lie.] A male witch; a wizard; a sprite; an imp. [Written also warluck.] Dryden.
It was Eyvind Kallda's crew
Of warlocks blue,
With their caps of darkness hooded! Longfellow.