Re: Pronunciation of Thaisa ?
I would guess either "thay-ZEE-ah" or "thay-ZEE-uh," depending upon your dialect of English.
Bastien
But here there is no light,
Save what from heaven is with the breezes blown
Through verdurous glooms and winding mossy ways.
-John Keats, Ode to a Nightingale