reverend mother

What is more, their reverend mother cannot even ask the mother general in Paris for special permission; the reverend mother has forgotten her French.

From Time Magazine Archive

Bodley, in the sketch of his own life, betrays that early book-love which subsequently broke out into that noble passion for “his reverend mother, the University of Oxford.”

From Amenities of Literature Consisting of Sketches and Characters of English Literature by Isaac Disraeli

Returning toward the hospice, we met the reverend mother and a sister; they took us into the little chapel where we were to hear mass the following morning.

From The Catholic World; Volume I, Issues 1-6 A Monthly Eclectic Magazine by E. Rameur

I reminded the reverend mother of her promise to me in regard to school, and she told me that she had not forgotten it, that the two years' novitiate was all schooling.

From The Demands of Rome Her Own Story of Thirty-One Years as a Sister of Charity in the Order of the Sisters of Charity of Providence of the Roman Catholic Church by Elizabeth Schoffen

This year the reverend mother was led to her seat between two nuns, who sustained her feeble limbs.

From London Pride Or When the World Was Younger by M. E. (Mary Elizabeth) Braddon