stupefy

英['stjuːpɪfaɪ] 美['stupɪfaɪ]

1. make dull or stupid or muddle with drunkenness or infatuation

2. be a mystery or bewildering to;

"This beats me!"

"Got me--I don't know the answer!"

"a vexing problem"

"This question really stuck me"

3. make senseless or dizzy by or as if by a blow;

"stun fish"