discolour Copy link Outline 1. dēcŏlōro, 12. infusco, 13. expr. by circuml. • discolour: 1. dēcŏlōro, 1: to d. skin, cutem d., Cels. 2. infusco, 1: v. to sully. 3. expr. by circuml.: to d. a thing, alicujus rei colorem vitiare, deteriorem reddere: v. colour.