The spelling of "McEvoy" can be confusing due to the unique combination of letters. The word is pronounced as /məˈkɛvɔɪ/ in IPA phonetic transcription. The "Mc" prefix is a common element in Irish surnames and signifies "son of". The "e" and "oy" letter combination is a typical representation of the Irish long "o" sound. The "c" followed by an "e" makes the sound "k" in this context. Overall, the spelling of "McEvoy" reflects its origin and pronunciation in Irish culture.
The surname "McEvoy" is of Irish origin and derives from the Gaelic Mac Dhuibhshíthe, meaning "son of Dubhisithe". "Dubhisithe" is composed of two elements: "dubh" meaning "black" or "dark", and "síth" meaning "peace" or "fairy". So, "McEvoy" can be interpreted as "son of the dark peace" or "descendant of the black fairy".