S: (v) tarnish, stain, maculate, sully, defile (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"
S: (v) change (undergo a change; become different in essence; losing one's or its original nature) "She changed completely as she grew older"; "The weather changed last night"
S: (v) defame, slander, smirch, asperse, denigrate, calumniate, smear, sully, besmirch (charge falsely or with malicious intent; attack the good name and reputation of someone) "The journalists have defamed me!"; "The article in the paper sullied my reputation"