nativitas

From Proto-Italic *gnātīwitāts. Equivalent to nātīvus (“native, natural”) +‎ -tās, from nāscor (“I am born”).

• (Classical) IPA^(key): /naːˈtiː.u̯i.taːs/, [näːˈt̪iːu̯ɪt̪äːs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /naˈti.vi.tas/, [näˈt̪iːvit̪äs]

nātīvitās f (genitive nātīvitātis); third declension

1. birth, nativity
2. (capitalised) the birth of Jesus Christ
3. Christmas, the Nativity: the feast day celebrating the birth of Jesus Christ
4. Christmastide, Christmas season, the Twelve Days of Christmas: the season or time between Christmas Day and the Epiphany
5. Annunciation (used in conjunction with "annuntiatio")

Third-declension noun.

• nāscor
• nātiō
• nātīvus

• “nativitas”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• nativitas in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• nativitas in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.