Is it ensure, insure, or assure?
c.1300, schowten "to call or cry out loudly," of unknown origin; perhaps from the root of shoot (v.) on the notion of "throw the voice out loudly," or related to Old Norse skuta "a taunt" (cf. scout (v.2)). Related: Shouted; shouting.
late 14c., from shout (v.).
This has been a complete disaster or a waste of time, and one should not have bothered to get up in the morning (1940s+)