Root form: Ifearnán
Irish-language surnames
Ó hIfearnáin, Uí Ifearnáin, Ní Ifearnáin
Male form
- Nominative
- Seán Ó hIfearnáin
- Genitive
- Sheáin Uí Ifearnáin
- Vocative
- a Sheáin Uí Ifearnáin
Wife form
- Nominative
- Síle Uí Ifearnáin
- Genitive
- Shíle Uí Ifearnáin
- Vocative
- a Shíle Uí Ifearnáin
Daughter form
- Nominative
- Síle Ní Ifearnáin
- Genitive
- Shíle Ní Ifearnáin
- Vocative
- a Shíle Ní Ifearnáin
English-language surnames
- Heffernan