a. [ L. illustris, prob. for illuxtris; fr. il- in + the root of lucidus bright: cf. F. illustre. See Lucid. ]
Quench the light; thine eyes are guides illustrious. Beau. & Fl. [ 1913 Webster ]
Illustrious earls, renowened everywhere. Drayton. [ 1913 Webster ]
adv. In a illustrious manner; conspicuously; eminently; famously. Milton. [ 1913 Webster ]
n. The state or quality of being eminent; greatness; grandeur; glory; fame. [ 1913 Webster ]