Kermode is a Manx surname, representing an Anglicized form of McDermott, which itself derives from the Irish Mac Diarmada, meaning "son of Diarmaid." The spelling and pronunciation were adapted to suit English phonetic and orthographic conventions, a common pattern for Irish names during the process of Anglicization in the British Isles. Etymology The original Irish patronymic Mac Diarmada references the personal name Diarmaid, a legendary and historically significant figure. The McDermotts were the ruling dynasty of the Kingdom of Moylurg in Connacht, Ireland. The shift from McDermott to Kermode likely involved a substitution of the initial syllable‘s sound, influenced by Manx or local dialects in the Isle of Man, where the surname is particularly found. A notable variant in English is