Confessional
来自Big Physics
late Middle English (as an adjective): the adjective from confession + -al; the noun via French from Italian confessionale, from medieval Latin, neuter of confessionalis, from Latin confessio(n- ), from confiteri ‘acknowledge’ (see confess).
wiktionary
confession + -al
From French confessionnal.
etymonline
confessional (n.)
"small stall in a Catholic church in which a priest sits to hear confession," 1727, from French confessional, from Medieval Latin confessionale, noun use of neuter of confessionalis (adj.), from past-participle stem of confiteri "to acknowledge" (see confess).
confessional (adj.)
"pertaining to confession," mid-15c., from Medieval Latin confessionalis, from past-participle stem of confiteri "to acknowledge" (see confess).