noun

warlock

WOR-lahk/ˈwɔːrlɑːk/

A person, usually male, who practices witchcraft or dark magic.

The robed warlock studies a spell diagram beside herbs and a candle.

A fictional adult male warlock in a historically inspired robe studies a small symbolic spell diagram beside herbs and a candle; fantasy belief context, no real ritual instructions or ethnic caricature.
Etymology

The covenant and lying elements suggest an original sense of “oath-breaker.” Applied especially to the devil, the word later meant someone in league with the devil, then a male witch.

In context

Rarevoyant0:54
giles redfern a very experienced witch hunter has imprisoned a powerful warlock atop a stone tower
The Cinematic Guide to Witchcraft: Chapter 1 - "Warlock" (1989)

More examples

  • The game lets players choose a warlock character.
  • A feared warlock guarded the enchanted tower.
  • The story's warlocks competed for a magical relic.

Forms

warlock · warlocks

Similar words

wizard
Usually a male magic-user without necessarily implying dark magic.
sorcerer
Sorcerer is a broader term for a magical practitioner without warlock's particular connotations.