Root form: Seinicín
Irish-language surnames
Seinicín, Seinicín
Male form
- Nominative
- Seán Seinicín
- Genitive
- Sheáin Seinicín
- Vocative
- a Sheáin Seinicín
Female form
- Nominative
- Síle Seinicín
- Genitive
- Shíle Seinicín
- Vocative
- a Shíle Seinicín
Alternative Irish-language surnames
Mac Seinicín, Mhic Sheinicín, Nic Sheinicín
Male form
- Nominative
- Seán Mac Seinicín
- Genitive
- Sheáin Mhic Sheinicín
- Vocative
- a Sheáin Mhic Sheinicín
Wife form
- Nominative
- Síle Mhic Sheinicín
- Genitive
- Shíle Mhic Sheinicín
- Vocative
- a Shíle Mhic Sheinicín
Daughter form
- Nominative
- Síle Nic Sheinicín
- Genitive
- Shíle Nic Sheinicín
- Vocative
- a Shíle Nic Sheinicín
English-language surnames
- Jenkins