I / illūmĭnātio
noun

illūmĭnātio

gen. illūmĭnātōnis · gender feminine · decl. 3rd
(), , illumino
a lighting up; enlightening
a lighting up, enlightening (post-class.).
Lit.: solis, Macr. S. 1, 18, § 13: vultus tui, Ambros. in Psa. 43, 12.—
figuratively
Trop.: bonorum, Tert. Adv. Herm. 15.