First attested in the 18th century, from French ogre, from Latin Orcus (“god of the underworld”), from Ancient Greek Όρκος (Horkos), the personified demon of oaths (ὅρκος (“oath”)) who inflicts punishment upon perjurers.
ogre (plural ogres)
- (mythology) A type of brutish giant from folk tales that eats human flesh.
- (figuratively) A brutish man whose behavior resembles that of the mythical ogre.
Related terms 
- IPA: /ɔɡʁ/
From Latin Orcus.