lose one’s cool

tv. to lose control; to lose one’s temper. (Compare this with keep one’s cool.) Now, don’t lose your cool. Relax.

Name	Pronounced	Usage
Qismat	-	Arabic
Balch	[bɔ:ltʃ]
Jurek	YUW-rek	Polish
Elouise	EL-o-eez, el-o-EEZ	English
Vlasta	-	Czech, Croatian, Serbian
Meredydd	-	Welsh