The Origin of Dennis

[OOC] Anwash: 'The name Dennis means Devotee Of Dionysos and is of English origin. Dennis is a name that's been used primarily by parents who are considering baby names for boys. Originally from the Greek name Dionysius.'

This is why we play MMO’s, people. I damn near guarantee none of your Facebook friends have taught you anything at all, let alone an etymological fact.