Fay vs Gay

Fay

name
  • An Anglo-Irish surname transferred from the nickname, Anglicized from de Fae a Norman family that settled in Ireland. 

  • A female given name, pet form of Faith or Frances; often used as a middle name. 

  • A surname from Irish, anglicized from Ó Fiaich and Ó Fathaigh. (see Fahey.) 

Gay

name
  • An English surname transferred from the nickname, originally a nickname for a cheerful or lively person. 

  • A female given name from English from the word gay, "joyful"; rare today. 

  • A male given name from English. Also a shortened form of Gabriel, Gaylord and similar names, or transferred from the surname. 

How often have the words Fay and Gay occurred in a corpus of books? (source: Google Ngram Viewer )