2219. What character can be added to both of these characters to give other characters? 折_ -> _未

折  SETSU, o(ru), o(reru), ori - break, fold, yield, bend, occasion

未  MI - not yet

Add 口:折+口 口+未   

口  KOU, kuchi - mouth

哲  TETSU - wisdom

味  MI, aji , aji(wau) - taste