Bible Dictionaries
Penitential

Webster's Dictionary

(1):

(a.) Of or pertaining to penitence, or to penance; expressing penitence; of the nature of penance; as, the penitential book; penitential tears.

(2):

(n.) A book formerly used by priests hearing confessions, containing rules for the imposition of penances; - called also penitential book.

Bibliography Information
Webster, Noah. Entry for 'Penitential'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/penitential.html. 1828.