noun, plural qui·e·tus·es.
Examples from the Web for quietus
The briefest glance at David's productivity and output during his tenure there ought to put the quietus on that canard.
The pressure of care is thus relieved, without its quietus being found in intelligence.Winds Of Doctrine|George Santayana
After giving him his quietus she had no doubt intended to take his canoe and join her party.The Woman from Outside|Hulbert Footner
A fracture of the rope or the falling of a piece of rock might give the explorer his quietus.The Jenolan Caves|Samuel Cook