get up (one's) nerve (to do something)

To muster or draw upon one's courage or resolve to do something. I wanted to ask Mary Sue to the prom, but I never got up the nerve. I hope Jonathan finally gets up his nerve to ask his boss for a raise.

Common Names:

Name	Pronounced	Usage
Anastazie	-	Czech
Stepan	stye-PAHN (Russian), stee-PAHN (Russian)	Russian, Armenian
Traudl	-	German
Marika	MAH-ree-kah (Finnish)	Czech, Slovak, Polish, Hungarian, Greek, Finnish, Estonian
Issachar	IS-ə-kahr (English)	Biblical
Valorie	VAL-ə-ree	English