Cilla
Cilla meaning: A diminutive of Priscilla made famous by 1960s British singer CilIa Black, who was born Priscilla White.
Cilla origin: English
Cilla gender: Female

Cillan
Cillan meaning: Variant of Ceallach: War, strife.
Cillan origin: Irish
Cillan gender: Male

Colmcilla
Colmcilla meaning: Dove of the church.
Colmcilla origin: Irish
Colmcilla gender: Female