strike (someone) dumb

To render someone speechless, as due to a great surprise or shock. My father's sudden resignation from the company struck each of us dumb.

Name	Pronounced	Usage
Dagney	-	Various
Ladd	['læd]
Carlotta	kahr-LOT-tah	Italian
Stig	-	Swedish, Norwegian, Danish
Zivit	-	Hebrew
Dexter	DEKS-tər	English