鉴戒

鉴戒	jiàn jiè	lesson from events of the past / warning
鉴	jiàn	variant of 鉴
鉴	jiàn	old variant of 鉴
鉴	jiàn	bronze mirror (used in ancient times) / to reflect / to mirror / sth that serves as a warning or a lesson / to examine / to scrutinize
鉴	jiàn	variant of 鉴
戒	jiè	to guard against / to exhort / to admonish or warn / to give up or stop doing sth / Buddhist monastic discipline / ring (for a finger)