 Variant forms of "Mac Amhalghaidh" and "Mac Amhalghadha" are "Mag Amhalghaidh" and "Mag Amhalghadha".These surnames are rendered for unmarried females as "Nig Amhalghaidh" and "Nig Amhalghadha".The form for married females are "Bean Mhig Amhalghaidh" and "Bean Mhig Amhalghadha"; or simply "Mhig Amhalghaidh" and "Mhig Amhalghadha".