also: コヒサン
noun
Archaic term used by early Japanese Christians, borrowed from Portuguese 'confissão'. Not used in modern Japanese; the modern term is 告白 (こくはく) or 懺悔 (ざんげ).
from Portuguese confissão
コンヒサンは、キリシタン時代に使われた古い言葉です。
Konhisan is an old word used during the Christian era in Japan.