structural:scholar_edition, stylistic:style_transfer
Abnormal end

This usage derives from the ABEND macro on IBM OS/360,..., z/OS operating systems. Usually capitalized, but may appear as "abend". Some common ABEND codes are System ABEND 0C7 (data exception) and System ABEND 0CB (division by zero). Abends can be "soft" (allowing automatic recovery) or "hard" (terminating the activity). The term is jocularly claimed to be derived from the German word " Abend " meaning "evening".