In folklore, a werewolf[a] (from Old English werwulf 'man-wolf'), or occasionally lycanthrope[b] (from Ancient Greek λυκάνθρωπος, lykánthrōpos, 'wolf-human'), is an individual who can shape-shift into a wolf, or especially in modern film, a therianthropic hybrid wolf-like creature, either purposely or after being placed under a ...