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tr.v. en·no·bled, en·no·bling, en·no·bles
1. To make noble: "that chastity of honor ... which ennobled whatever it touched, and under which vice itself lost half its evil" (Edmund Burke).
2. To confer nobility upon: ennoble a prime minister for distinguished service.
[Middle English *ennoblen, from Old French ennoblir : en-, causative pref.; see en-1 + noble, noble; see noble.]