TARNISH Copy link • TARNISHTransitively, rem obscurare; praestringere nitorem rei; hebetare, praestringere aliquid (PROP.; speculorum fulgor hebetatur, is tarnished); obscurare, obruere (figuratively); then, also, decori officere (Liv., 1, 53, to tarnish one’s reputation). Intransitively, obscurari; splendorem, candorem amittere (Cic.); also, hebescere (Tac.).