The spelling of the word "McClendon" can be confusing for English speakers unfamiliar with Scottish Gaelic orthography. In IPA phonetic transcription, it is pronounced /məˈklɛndən/. The "Mc" at the beginning of the word is a Gaelic prefix, indicating "son of." The "c" and "k" are used interchangeably in Scottish Gaelic to represent the same sound. The "e" after the "l" is a silent vowel used to break up the cluster of consonants. The final "don" in the word originates from the Gaelic word "donn" meaning "brown."
The surname "McClendon" is of Scottish origin. It is an anglicized form of the Gaelic name "Mac Giolla Fhiondáin", meaning "son of the servant of (Saint) Fhionnáin". The surname originates from the personal name Fhionnáin, a diminutive of "Fhionn", meaning "fair" or "white-haired". Over time, the surname evolved into various forms, including McClendon.