proper noun/mal.nu/
a farm in La Gaubretière, Vendée department, Pays de la Loire, France; a farm in Marolles-en-Brie, Seine-et-Marne department, Île-de-France, France; a farm in Ruan-sur-Egvonne, Loir-et-Cher department, Centre-Val de Loire, France; a hamlet in Soulaines-sur-Aubance, Maine-et-Loire department, Pays de la Loire, France
From malnoue (literally “bad (marshy) pasture”), from mal- + noue.