noun
or tran·quil·i·ty tranˈkwiləd.ē, traan- traŋˈ-, -ətē, -i
( -es )
Etymology: Middle English tranquillite, from Middle French tranquillité, from Latin tranquillitat-, tranquillitas, from tranquillus tranquil + -itat-, -itas -ity
: the quality or state of being tranquil
emotion recollected in tranquillity — William Wordsworth
the lasting peace which is the tranquillity of order — J.P.McGranery
the tranquillity of the flowing stream is carefully measured