Emily Dickinson Lexicon

IL-LUME', or IL-LU'MINE, v.t. [Fr. illuminer; L. illumino; in and lumino, to enlighten, from lumen, light. See Luminous.]

1. To illuminate; to enlighten; to throw or spread light on; to make light or bright. Milton. [These words are used chiefly in poetry.]
2. To enlighten, as the mind; to cause to understand.
3. To brighten; to adorn. The mountain's brow, / Illum'd with fluid gold. Thomson.