interruption (n.) Look up interruption at Dictionary.com
late 14c., "a break of continuity," from Old French interrupcion and directly from Latin interruptionem (nominative interruptio) "a breaking off, interruption, interval," noun of action from past participle stem of interrumpere (see interrupt). Meaning "a breaking in upon some action" is from c.1400; that of "a pause, a temporary cessation" is early 15c.