Definitions

1. noun

A rare or obsolete term for the process of coming into being or existence, especially the process of a foetus developing in the womb

“During the 17th century, eccyesis referred to the formation of a foetus in the womb.”

2. noun

An obsolete term for the process of being born or coming into the world

“In the 18th century, eccyesis referred to the birth of a child.”