Root form: Peadar
Irish-language surnames
Mac Pheadair, Mhic Pheadair, Nic Pheadair
Male form
- Nominative
- Seán Mac Pheadair
- Genitive
- Sheáin Mhic Pheadair
- Vocative
- a Sheáin Mhic Pheadair
Wife form
- Nominative
- Síle Mhic Pheadair
- Genitive
- Shíle Mhic Pheadair
- Vocative
- a Shíle Mhic Pheadair
Daughter form
- Nominative
- Síle Nic Pheadair
- Genitive
- Shíle Nic Pheadair
- Vocative
- a Shíle Nic Pheadair
English-language surnames
- Peters
- Peterson
- McFeeters