dumbfound

or dum·found

[ duhm-found, duhm-found ]
/ dʌmˈfaʊnd, ˈdʌmˌfaʊnd /

verb (used with object)

to make speechless with amazement; astonish.
Also dumb·found·er, dum·found·er.

Origin of dumbfound

First recorded in 1645–55; dumb + (con)found

OTHER WORDS FROM dumbfound

dumb·found·er·ment, dum·found·er·ment, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dumbfounded

British Dictionary definitions for dumbfounded

dumbfound

dumfound

/ (dʌmˈfaʊnd) /

verb

(tr) to strike dumb with astonishment; amaze

Word Origin for dumbfound

C17: from dumb + (con) found
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012