English

idiochromatic

From idio- + chromatic.

Proto-Indo-European *swé ‘self’

Proto-Indo-European *swéd-yo-s

Proto-Hellenic *hwédios

Ancient Greek ἴδιος ‘own, personal, distinct’

English idio-

French chromatique

Today it means

adj Having a distinct, characteristic colour even when pure.

Language periods are conventional ranges, not dates for this word.

Etymograph / idiochromatic