grogan · noun1
Unknown.
Grogan · proper noun2
- Irish · derived fromÓ Gruagáin“descendant of Gruagán”
- Irish · derived fromÓ Grúgáin“descendant of Grúgán”
- English todayGrogan
Reduced Anglicized form of Irish Ó Grúgáin (“descendant of Grúgán”), a personal name derived from a diminutive form of grúg (“anger”) or a reduced Anglicized form of Irish Ó Gruagáin (“descendant of Gruagán”), a personal name derived from a diminutive form of gruag (“hair”). Compare McGrogan.
Etymology from Wiktionary, CC BY-SA 4.0.