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Tranquility - 3 dictionary results

tran⋅quil⋅li⋅ty

[trang-kwil-i-tee]
–noun
quality or state of being tranquil; calmness; peacefulness; quiet; serenity.
Also, tran⋅quil⋅i⋅ty.


Origin:
1325–75; ME tranquillite < L tranquillitās. See tranquil, -ity
tran·quil·li·ty or tran·quil·i·ty   (trāng-kwĭl'ĭ-tē, trān-)   
n.  The quality or state of being tranquil; serenity.

tranquility 
c.1374, from O.Fr. tranquilite (12c.), from L. tranquillitatem (nom. tranquillitas) "tranquilness," from tranquillus "tranquil," perhaps from trans- "over" (here in sense of "exceedingly") + a root related to quies "rest" (see quiet). The adj. tranquil is attested from 1604, from Fr. tranquille (1470). Tranquilize formed in Eng. 1623; tranquilizer "sedative" is from 1824 (first reference is to ground ivy); in reference to one of a large group of anti-anxiety drugs, it is first recorded 1956.
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