Lewis Short
(verb) : nōbĭlĭto, āvi, ātum, 1, nobilis.
* To make known, to render famous or renowned: disciplinā militari nobilitatus est,Nep. Iphic. 1, 1: poëtae post mortem nobilitari volunt,Cic. Tusc. 1, 15, 34: spectata ac nobilitata virtus,id. Fl. 26, 63: neque enim ex te umquam es nobilitatus,id. Sen. 9, 27: famam,Liv. 1, 16.—Also in an unfavorable sense, to render notorious: ne eam malefactis nobilitarent, Titin. ap. Non. 352, 8: stultum adulescentulum nobilitas flagitiis,Ter. Eun. 5, 7, 20: Phalaris, cujus est nobilitata crudelitas,Cic. Off. 2, 7, 26: adulterio nobilitatus,Plin. 29, 1, 5, § 8.
* To render excellent, to ennoble, improve: qui novitatem suam multis rebus nobilitaverat,Vell. 2, 96, 1: Auster vites nobilitat,Pall. 1, 6, 7: quae nobilitatos maritos non haberent, ne innobilitatae remanerent,Lampr. Heliog. 4, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary