I've never heard of Dionis / Dionys before. But I'd be very surprised if it weren't related to Dionysia, a favorite of mine. I pronounce Dionysia as, "dee-uh-NEE-see-uh," but I've also heard "die-uh-NIE-see-uh."
Dionysius is also related. ("die-uh-NIE-see-us" or "dee-uh-NEE-see-us")
They all are original forms of
Denis /
Dennis /
Denise, I believe.
To answer your original question, I'd guess that Dionis / Dionys was masculine. But that's a total guess.
This message was edited 6/25/2009, 10:58 AM