Updated June 9, 2019 Share: Girl name origins & meanings Irish : Sole or only choice Boy name origins & meanings Greek : Praised Boy name variations Eneas Enneas Ennes How Popular Is The Name Ennis Family name origins & meanings Irish : Anglicized form of Gaelic Ó hAonghuis ‘descendant of Angus’, a variant of Ó hAonghusa (see Hennessy).Irish : variant of Scottish and Manx Innes.