8 Words That Are Older Than You Think
see molder. Related: Mouldered; mouldering.
also moulder, "to crumble away," 1530s, probably frequentative of mold (n.3) "loose earth." Related: Moldered; moldering.
also moulder, mid-15c., "one who molds or forms," agent noun from mold (v.). From late 13c. as a surname.