出典:Wiktionary
Originally onomatopoeic ("perhaps ancient" according to Online 語源 Dictionary) for a puff of air, after earlier poh and similar to later pew, phew, pho, phoo, poof. Later influenced by poop, onomatopoeic for the sound of flatulating and defecating, and by interjections of disgust similar to phew, pee-ew. Interjection for an unpleasant smell possibly linked to French puer (“to stink”).
pooh
pooh (countable かつ uncountable, 複数形 poohs)
pittas
ピーウィー
pewees
プーク
あご
a jaw
ぱかり
ふた