Definition of mavourneen in US English:

mavourneen

noun

Irish English
  • Usually as vocative: ‘my darling’.

Origin

Early 19th century; earliest use found in Thomas Campbell. From Irish mo mhuirnín my darling from mo + muirnín darling from muirn affection + -ín.

Pronunciation

mavourneen

/məˈvʊəniːn/