The spelling of the word "McGinn" is derived from its Irish origins. The "Mc" prefix indicates a son of someone, while "Ginn" references the Irish Gaelic name for "Shane". Therefore, "McGinn" means "son of Shane". In IPA phonetic transcription, it is pronounced as /məˈɡɪn/ (muh-gin). The letter "c" is pronounced as either a hard "k" or a soft "s" sound, depending on the regional dialect. The pronunciation may vary among different individuals, but the spelling of the name remains consistent.
The name "McGinn" is of Scottish origin and is derived from the Gaelic "MacGilleFhinneain". "Mac" means "son of", and "GilleFhinneain" is a personal name which translates to "servant of St. Finan". Thus, "McGinn" means "son of the servant of St. Finan". It is a patronymic surname, indicating descent from an ancestor who was associated with or devoted to St. Finan.