1839, "the whole mass of ornament;" 1851 "that which serves as ornament;" 1860, "act or process of ornamenting," noun of action from ornament (v.).
Entries linking to ornamentation
ornament v.
"to adorn, deck, embellish," 1720, from ornament (n.). Middle English used ournen (late 14c.) in this sense, from Old French orner, from Latin ornare. Related: Ornamented; ornamenting.