quietus

noun3

1. •
   (old-fashioned) A stillness or pause; something that quiets or represses; removal from activity.

   • Olive's specific terrors and dangers had by this time very much blown over; Basil Ransom had given no sign of life for ages, and Henry Burrage had certainly got his quietus before they went to Europe. — 1885
2. •
   (figurative, old-fashioned) Death.

   • When he himselfe might his Quietus make / With a bare Bodkin? — 1599
3. •
   (old-fashioned) Final settlement (e.g., of a debt).