On move-in day I opened the front door to a pungent, musky odor of pure mold.
Vines that grow native in America (vitis labrusca, among others) are known for “foxy” or musky aromas and flavors.
c.1600, from musk + -y (2). Related: Muskiness.
late 19c., short for muskrat or muskellunge. Also muskie.