achromatize

• achromatise (UK)

From Ancient Greek ἀ- (a-, “not”) + χρῶμα (khrôma, “colour”).

achromatize (third-person singular simple present achromatizes, present participle achromatizing, simple past and past participle achromatized)

1. (transitive) To deprive of colour; to make achromatic.
2. (transitive) To remove chromatic aberration from an optical system