vowess
/ˈvoʊ.ɛs/Definitions
1. noun
A female vow or a woman who takes a vow
“The vowess spent years in contemplation before taking her final vows.”
2. noun
A woman who has taken the vows of a nun, but has not yet been professed
“In the medieval period, a vowess was considered a transitional state between laywoman and nun.”