"You canker blossom!" 3 Shakespearean Insults
late 15c., "birth," from natal + -ity. Sense of "birth rate" is from 1884, from French natalité, used in the same sense.
natality na·tal·i·ty (nā-tāl'ĭ-tē, nə-)n. The ratio of births to the general population; the birth rate.