As stated by Binet, it is a test of the “verbalization of color perception.”
We must not associate question-asking exclusively with verbalization.
Mention has been made of the process of 'verbalization' as applied to common misdemeanours.
c.1600, "use too many words," from French verbaliser (16c.); see verbal. Meaning "express in words" is attested from 1875. Related: Verbalized; verbalizing.