dumbfound
verb (used with object)
to make speechless with amazement; astonish.
Used to express a completed action that took place before another specific past action occurred.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"When is it?" she asked the Tamburini, who, a moment before, had dumbfounded her with the money.
From The Paliser case by Edgar Saltus