Lewis Short
dē-cŏlōro, āvi, ātum, 1
* V. a., to deprive of its natural color, to discolor, stain, deface, soil, etc.
* Prop.: 'decoloratur id cujus color vitiatur, non mutatur,' Sen. Q. N. 2, 41: quod mare Dauniae Non decoloravere caedes, * Hor. Od. 2, 1, 35: manibus collybo decoloratis, Cassius Parmensis ap. Suet. Aug. 4 fin.: cutem (suppurationes),Cels. 2, 8 med.: labra et nares (pallor),id. ib. 6: decoloratum corpus mortui,Auct. Her. 2, 5, 8; 2, 27 fin.: oliva ex albo decoloratur fitque luteola,Col. 12, 49, 9: decoloravit me sol,Vulg. Cant. 1, 5 al.
* Trop., to tarnish, corrupt, disgrace: aliquem,Cod. Just. 1, 3, 19; cf.: famam,Capitol. Ant. Phil. 19.
Charlton T. Lewis, Charles Short, A Latin Dictionary