In folklore, a werewolf (from Old English werwulf 'man-wolf'), or occasionally lycanthrope (from Ancient Greek) 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 curse or affliction, often a bite or the occasional scratch from another werewolf, with the transformations occurring on the night of a full moon.
This is my interpretation and i hope you like him.