stupefy

(verb) make dull or stupid or muddle with drunkenness or infatuation. Synonyms: besot.

(verb) be a mystery or bewildering to. Synonyms: perplex, vex, stick, get, puzzle, mystify, baffle, beat, pose, bewilder, flummox, nonplus, gravel, amaze, dumbfound. Examples: "This beats me!." "Got me--i don't know the answer!." "A vexing problem." "This question really stuck me."

(verb) make senseless or dizzy by or as if by a blow. Synonyms: stun. Example: "Stun fish."