Dumfound
Pronunciation : Dum"found`
Part of Speech : v.
Definition : Defn: To strike dumb; to confuse with astonishment. [Written also dumbfound.] Spectator.
t. [imp. & p. p. Dumfounded; p. pr. & vb. n. Dumfounding.]
Source : Webster's Unabridged Dictionary, 1913