Type Word Usage Old Irish Meaning & History Old Irish word meaning "sense, reason" [1]. Related ItemsDetails Given Name DescendantsQuinn, Quin(English) Conn(Irish) Conn(Irish Mythology) Conn(Old Irish) Surname DescendantsÓ Cuinn, Quinn(Irish) Sources & References Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Brill, 2009, page 216.