enlimn

from The Century Dictionary.

• To illuminate or adorn with ornamented letters or with pictures, as a book.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb rare To adorn by illuminating or ornamenting with colored and decorated letters and figures, as a book or manuscript.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb To adorn (a book, manuscript, etc.) by illuminating or ornamenting with coloured and decorated letters and figures.