Root form: Daibhéad
Irish-language surnames
Mac Daibhéid, Mhic Dhaibhéid, Nic Dhaibhéid
Male form
- Nominative
- Seán Mac Daibhéid
- Genitive
- Sheáin Mhic Dhaibhéid
- Vocative
- a Sheáin Mhic Dhaibhéid
Wife form
- Nominative
- Síle Mhic Dhaibhéid
- Genitive
- Shíle Mhic Dhaibhéid
- Vocative
- a Shíle Mhic Dhaibhéid
Daughter form
- Nominative
- Síle Nic Dhaibhéid
- Genitive
- Shíle Nic Dhaibhéid
- Vocative
- a Shíle Nic Dhaibhéid
Alternative Irish-language surnames
Daibhéid, Daibhéid
Male form
- Nominative
- Seán Daibhéid
- Genitive
- Sheáin Daibhéid
- Vocative
- a Sheáin Daibhéid
Female form
- Nominative
- Síle Daibhéid
- Genitive
- Shíle Daibhéid
- Vocative
- a Shíle Daibhéid
English-language surnames
- McDaid
- Devitt
- McDevitt
- Davitt