nativity (noun) – a birth or origin, particularly the circumstances and environment around it
BREAKDOWN: NAT- (birth) + -IVE (state of) + -ITY (quality)
— the Nativity refers to the birth of Jesus Christ as commemorated during Christmas
This word is built on the root NAT-, which means birth or born.
Common NAT- words include international, nation, native, nature, pregnant, and puny.
More esoteric NAT- words include adnate, connate, and perinatal.