+ Ciarraide "People of Ciar"

+ Translated to Ciardha in Middle Irish

o       Related Names:

o      Ciara: Ciarda, Ceara, Ciara, Ciera, Keara, Keira, Kiara, Kiera, Ciaran, Keiran, Kiaran, Kieran

o      Carey: Carey, Cari, Carrie, Carry, Cary, Kari, Karie, Karri, Karrie

+ Translated to Ciarrai in Modern Gaelic

o       Related Names:

o      Kerry: Keri, Kerrey, Kerri, Kerrie, Kerry

o      Keary: Kearey, Keari, Kearie, Keary

+ Surnames Iain Ua Ciarraide, Conlan Ui Ciarraide

+ Modernized to O Ciardha

+ Anglicized into O'Carey & O'Kerry

+ Which were then changed to Carey & Kerry

Thanks to Breandan at http://ciarraide.org for all of his help!