FLABBERGASTING
Etymology
Adjective
flabbergasting (comparative more flabbergasting, superlative most flabbergasting)
Overwhelming in a bewildering way; amazing, confounding, stunning, especially in a ludicrous manner.
Verb
flabbergasting
present participle of flabbergast
Source: Wiktionary
FLABBERGAST
Flab"ber*gast, v. t. Etym: [Cf. Flap, and Aghast.]
Definition: To astonish; to strike with wonder, esp. by extraordinary
statements. [Jocular] Beaconsfield.
Source: Webster’s Unabridged Dictionary 1913 Edition