The story
- Ancient Greek · borrowed fromλῠκᾰνθρωπῐ́ᾱ
- English todaylycanthropy
Borrowed from Ancient Greek λῠκᾰνθρωπῐ́ᾱ (lŭkănthrōpĭ́ā), from λῠκᾰ́νθρωπος (lŭkắnthrōpos, “wolfman”). By surface analysis, lycanthrope + -y (abstract noun suffix).
Etymology from Wiktionary, CC BY-SA 4.0.