Ó Cathasaigh

Irish

Etymology

From Ó + Cathasach, a given name derived from Old Irish cathaisech (“vigilant; noisy”) (compare cathaiseach).

Pronunciation

• IPA^(key): /oːˈkahəsˠiː/

Proper noun

Ó Cathasaigh m (genitive Uí Chathasaigh)

1. a male surname originating as a patronymic, feminine equivalent Ní Chathasaigh, equivalent to English Casey

References

• MacLysaght, Edward (1985), “(O) Casey”, in The Surnames of Ireland, sixth edition, Dublin: Irish Academic Press, →ISBN, page 40; reprinted 1999