I've never seen
Amyas before. I assume it's related to
Amias, which is pronounced "AY-mee-us." Despite the obvious similarity to the female name
Amy, I don't find
Amias feminine at all. It has an old-fashioned air of grace and gentility.
Sir
Amias Paulet (sp?) was a servant of
Queen Elizabeth I. (That's the only reference I have for it.)