Root form: Orc
Irish-language surnames
Mac Oirc, Mhic Oirc, Nic Oirc
Male form
- Nominative
- Seán Mac Oirc
- Genitive
- Sheáin Mhic Oirc
- Vocative
- a Sheáin Mhic Oirc
Wife form
- Nominative
- Síle Mhic Oirc
- Genitive
- Shíle Mhic Oirc
- Vocative
- a Shíle Mhic Oirc
Daughter form
- Nominative
- Síle Nic Oirc
- Genitive
- Shíle Nic Oirc
- Vocative
- a Shíle Nic Oirc
English-language surnames
- McGuirk