miniate
To paint or tinge with red lead or vermilion, or with red letters, as in a manuscript.
At Trinity college in Cambridge is a Psalter in Latin and Saxon, admirably written, and illuminated with letters in gold, silver, miniated, &c.
Where it comes from
Partly borrowed from Latin miniātus (adjective), partly from miniātus, perfect passive participle of miniō (“to cover with vermilion”), see -ate (adjective-forming suffix) and -ate (verb-forming suffix).
Adapted from the Wiktionary entry miniate (CC BY-SA 4.0).