transitive verb Etymology: origin unknown Date: 1772 to overwhelm with shock, surprise, or wonder ; dumbfound , see: surprise ~ingly adverb
FLABBERGAST
Meaning of FLABBERGAST in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012