Webster's Revised Unabridged Dictionary · 1913

Mavournin

Mavournin (mȧ*vor"nēn) , noun

[Ir. mo mhuirnin my darling; mo my + mhuirnin darling.]

My darling; -- an Irish term of endearment for a girl or woman.
Erin mavournin. — Campbell

Also: Mavourneen