Noah Webster's Dictionary (n.) The state of being childless.

Multi-Version Concordance Childlessness (1 Occurrence) Isaiah 47:9 And come in to thee do these two things, In a moment, in one day, childlessness and widowhood, According to their perfection they have come upon thee, In the multitude of thy sorceries, In the exceeding might of thy charms. (YLT)