quietus \kwy-EE-tuhs\, noun:
1. Final discharge or acquittance, as from debt or obligation.
2. Removal from activity; rest; death.
3. Something that serves to suppress or quiet.
It was after eleven when Fanning put the quietus to his day, retreating to the "Hospitality Suite" where he'd been hanging his hat these past weeks.
-- David Long, The Daughters of Simon Lamoreaux