Fromserēnus(“serene”) +‎-tās.

• (Classical Latin)IPA^(key): /seˈreː.ni.taːs/,[s̠ɛˈreːnɪt̪äːs̠]
• (modern Italianate Ecclesiastical)IPA^(key): /seˈre.ni.tas/,[seˈrɛːnit̪äs]

serēnitās f (genitiveserēnitātis);third declension

1. serenity,peacefulness

   Synonyms:ōtium,tranquillitās,pāx,quiēs

   Antonyms:sēditiō,tumultus,turba,inquiēs,concursus

2. fineweather
3. (figuratively)favourableconditions

Third-declension noun.

• “serenitas”, inCharlton T. Lewis and Charles Short (1879)A Latin Dictionary, Oxford: Clarendon Press
• “serenitas”, inCharlton T. Lewis (1891)An Elementary Latin Dictionary, New York: Harper & Brothers
• "serenitas", in Charles du Fresne du Cange’sGlossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• serenitas inGaffiot, Félix (1934)Dictionnaire illustré latin-français, Hachette.

• Latin terms suffixed with -tas
• Latin 4-syllable words
• Latin terms with IPA pronunciation
• Latin lemmas
• Latin nouns
• Latin third declension nouns
• Latin feminine nouns in the third declension
• Latin feminine nouns

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