Definition of quietation in US English:

quietation

noun

rare, archaic
  • The action of quieting; the state of being quieted or quiet; peace.

Origin

Early 16th century; earliest use found in William Atkynson (d. 1509), translator. From post-classical Latin quietation-, quietatio quietness, rest, repose, earlier in sense ‘quittance, exemption, discharge’ from quietat-, past participial stem of quietare + classical Latin -iō; compare -ation.

Pronunciation

quietation

/ˌkwʌɪəˈteɪʃn/