nativitas

Etymology
From. Equivalent to, from.

Noun

 * 1) birth, nativity
 * 2)  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")