Root form: Fearbhisigh
Irish-language surnames
Mac Fhirbhisigh, Mhic Fhirbhisigh, Nic Fhirbhisigh
Male form
- Nominative
- Seán Mac Fhirbhisigh
- Genitive
- Sheáin Mhic Fhirbhisigh
- Vocative
- a Sheáin Mhic Fhirbhisigh
Wife form
- Nominative
- Síle Mhic Fhirbhisigh
- Genitive
- Shíle Mhic Fhirbhisigh
- Vocative
- a Shíle Mhic Fhirbhisigh
Daughter form
- Nominative
- Síle Nic Fhirbhisigh
- Genitive
- Shíle Nic Fhirbhisigh
- Vocative
- a Shíle Nic Fhirbhisigh
English-language surnames
- Forbes