on one's honor

Entrusted to behave honorably and honestly without supervision. For example, The students were on their honor not to consult notes during the exam. Originally alluding to a solemn oath, this idiom dates from the mid-1400s.

Common Names:

Name	Pronounced	Usage
Batari	-	Indonesian
Lara (1)	LAHR-ə (English), LAH-rah (German, Italian, Spanish, Portuguese)	Russian, English, German, French, Italian, Spanish, Portuguese, Dutch, Hungarian, Slovene, Croatian
Annis	['ænis]
SmiltĖ	-	Lithuanian
Azalea	ə-ZAY-lee-ə, ə-ZAYL-yə	English (Rare)
AdorjÁN	-	Hungarian