German final secondary school exam, 1863, short for abiturium, from Modern Latin abitorire "to wish to leave," desiderative of Latin abire (neuter plural abitum) "to go away," from ab- "away" (see ab-) + ire "to go" (see ion).
Examples from the Web for abitur
Do they not offer homage willingly to Abitur of the Mountains?Sarchedon|G. J. (George John) Whyte-Melville