1998. What character can be added to both of these characters to give other characters? 安_ -> _丙


安  AN, yasu(i) - peace, cheap

丙  HEI - third in series

Add 木:安+木 木+丙  

木  MOKU, BOKU, ki - tree

案  AN - plan, proposal

柄  HEI, gara, e - pattern, design, handle