Defined: Variant of illumine; illumined, illumining; to illuminate; light up TRANSITIVE VERB
Origin: ME illuminen < OFr illuminer < L illuminare
Another of my favorite word sources, both for vocabulary and for usage, are the British. I first happened upon illumined in the Amelia Peabody (Emerson) historical mystery series by Elizabeth Peters. The author was born and raised in Illinois and earned her Ph.D in Egyptology from Chicago’s Oriental Institute. And thank goodness she took her passion and knowledge of Egyptology and parlayed it into the Amelia Peabody period mysteries about the Peabody/Emersons who hail from England! Peters also writes other mysteries, but we all must have our utmost favorites, right?