The name Avita is a girl's name meaning "life". Avita and is often added to lists like Ancient Roman Names and discussed in our forums with posts like "Heaven Hell Purgatory - Unusual/Outlandish Girls".
From the experts:
Avita sounds like a drug name. In fact, it is! (It's an acne medication.) While that may not be enough to stop you, you might want to consider Aviva, Vita, or Evita (which has issues of its own) instead.