mavourneen UK /məˈvʊəniːn/US /məˈvʊɹniːn/ noun1 •(Ireland) darling, sweetheart"Ay, Paddy, mavourneen; I'll be bail they didn't skit and laugh the way some people would be doin'." "Laugh! not thimsilves, indeed." — 1850 formsmavourneens