I did a thread earlier this year on female Scottish names and
Davina is one of my favorites. It didn't go over especially well with the regulars here so I'm thrilled that someone else likes
Davina!
I've never heard the other pronunciation and I'm not sure you'd get what you're looking for. The pronunciation of
Davina seems pretty straitforward to me. I confess, I'd probably do a double take if I heard someone called DAV-inn-a. As far as nns go, I think Davy/Davie would be much more likely than
Dave (yuck).
I like
Davina Rose and
Davina Clare.
BTW, EH-va is a legit pronunciation (there are several). ;-)