produce synthetically, artificially, or stereotypically and unoriginally
to manufacture sections of (a building), especially in a factory, so that they can be easily transported to and rapidly assembled on a building site of buildings
discoloration of metal surface caused by oxidation
make dirty or spotty, as by exposure to air; also used metaphorically; "The silver was tarnished by the long exposure to the air"; "Her reputation was sullied after the affair with a married man"