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
Tor	TOOR (Swedish, Norwegian), TOR (Danish)	Swedish, Norwegian, Danish
Cleophas	KLEE-ə-fəs (English)	Biblical
Willi	VI-lee	German
SeÒRas	SHO-rahs	Scottish
Issa	-	Arabic
Meredith	MER-ə-dith (English)	Welsh, English