2748. What character can be added to both of these characters to give other characters? 止_ -> _蔵

止  SHI, to(meru), to(maru) - stop

蔵  ZOU, kura - storehouse, warehouse

Add 月:止+月 月+蔵  

月  GETSU, GATSU, tsuki - moon, month

肯  KOU - agree, consent

臓  ZOU - internal organ