passaddhi

Passaddhi is a Pali noun (Sankrit: prasrabhi, Tibetan: ཤིན་ཏུ་སྦྱང་བ་,Tibetan Wylie: shin tu sbyang ba) that has been translated as "calmness," "tranquillity," "repose" and "serenity." The associated verb is passambhati (to calm down, to be quiet).