Cilla Is A Girl’s Name Of Latin Origin. It’s A Shortened Form Of The Latin Name Priscilla, A Variant Of The Roman Family Name Priscus, Which Means “ancient” Or “venerable.” If You’re Proud Of Your Family Heritage, You Could Choose This Name To Show That Baby Comes From A Long, Impressive Bloodline! It May Also Be Related To Cecilia, Another Latin Name Deriving From The Word caecus, Meaning “blind.” A Famous Bearer Of This Name Is English Singer Cilla Black.