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
Tyr	TIR	Norse Mythology
Isolde	i-ZOL-də (English), i-SOL-də (English), ee-ZAWL-du (German)	English (Rare), German, Arthurian Romance
Barry	['bæri]
Joselyn	JAHS-lin, JAHS-ə-lin	English (Modern)
Ernest	['ə:nist]
SauliĀ	-	Baltic Mythology (Hypothetical)