A nickname
Benjamin Disraeli (1804–1881), 1st Earl of Beaconsfield, and twice prime minister of the United Kingdom.
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.