呆 （ホウ） (I'm) shocked

呆ける （ボケル） to grow senile, to be childish with age, to be mentally slow, to be befuddled, to play stupid, to say something stupid (oft. on purpose; esp. as part of a comedic routine), to become engrossed in, to become absorbed in

痴呆 （チホウ） dementia

踊る阿呆に見る阿呆 （オドルアホウニミルアホウ） you're a fool if you dance, and a fool if you just look on; we're all fools, so let's dance

呆ける （ぼける） to grow senile, to be childish with age, to be mentally slow, to be befuddled, to play stupid, to say something stupid (oft. on purpose; esp. as part of a comedic routine), to become engrossed in, to become absorbed in

呆れる （あきれる） to be amazed, to be shocked, to be astonished, to be astounded, to be disgusted, to be exasperated, to be fed up