penitencer

Etymology
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Noun

 * 1)  A priest who heard confession and enjoined penance in extraordinary cases.
 * 2) * 1875, Clarke, Charles Cowden, The Canterbury tales of Chaucer, with notes by T. Tyrwhitt, Cassell Petter & Galpin, page 288:
 * I say not that if thou be assigned to thy penitencer for certain sin, that thou art bound to shew him all the remnant of thy sins...