Maybe as a mn, but for daily use I'd prefer something more streamlined.
Zephyrine? I was at school with a Zephne, which is like
Daphne but with a
Zeph instead of a Daph, and that worked well for her. To my knowledge she never had a nn, though her friends might have called her
Zeph sometimes; don't recall.
I don't like
Zephyr at all. I just think of those old maps with a face in each corner, cheeks puffed out, blowing clouds away.