Illume \Il*lume"\, v. t. [imp. & p. p. {Illumed}; p. pr. & vb. n. {Illuming}.] [Cf. F. illuminer. See {Illuminate}.] To throw or spread light upon; to make light or bright; to illuminate; to illumine. --Shak. The mountain's brow, Illumed with fluid gold. --Thomson.