keep one's shirt on

Stay calm, be patient; not give way to temper or excitement. For example, Keep your shirt on, Bob, they'll be here in time for the wedding. [Colloquial; mid-1800s]

Common Names:

Name	Pronounced	Usage
Bojidar	-	Bulgarian
Valentinus	-	Ancient Roman
Kostyantyn	-	Ukrainian
Tawfiq	-	Arabic
Caelie	KAY-lee	English (Rare)
Wilhelm	VIL-helm (German), VEEL-khelm (Polish)	German, Polish, Ancient Germanic