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
Firminus	-	Late Roman
Hatty	HAT-ee	English
Tafari	-	Eastern African, Amharic
Bjartr	-	Ancient Scandinavian
Asplin	['æsplin]
Klaudijs	-	Latvian