names

what does casey mean in irish

Casey = Ó Cathasaigh

Mac Cathasaigh of Co Monaghan.
Mhic Cathasaigh (if a female married to)
Nic Cathasaigh (if a daughter of).

Ó Cathasaigh. SIX UNRELATED CLANS!
Cork, Dublin, Fermanagh, Limerick, Mayo & Roscommon.
Uí Chathasaigh (a female married to a Casey)
Ní Chasasaigh (a daughter of a Casey.

In all cases, these seven clans in total all derive their name from cathasach meaning 'watchful, careful'.

regards,

Proinsias Mag Fhionnghaile
eolas@mcginleyclan.org