inbirth
An inner or inward birth
rare
My dear invisible Church (truly invisible, even to its pastor, as I never set eyes on one of you)-my dear Church, I'll let you into a secret—I am no mystic; I never in my life was in a “high sphere," and never experienced an “inbirth."
Where it comes from
From in- + birth. Compare Old English inberþ, inbyrd (“born within one's estate; native-born”).
Adapted from the Wiktionary entry inbirth (CC BY-SA 4.0).