• 乂(cut; eliminate)
• 木(wood; tree)

Using a weapon to chop into wood creates the image of killing and destruction.

• 鼠(mouse; rat (pictographic))

A mouse's head, teeth, body, and tail are stylized to form this character.

• 艹(grass; plant)
• 约(promise; bind)

Medicine is made from grass and plants, sounding like "wish" or "promise".

• 乂(cut; eliminate)
• 木(wood; tree)

Using a weapon to chop into wood creates the image of killing and destruction.

• 鼠(mouse; rat (pictographic))

A mouse's head, teeth, body, and tail are stylized to form this character.

• 艹(grass; plant)
• 约(promise; bind)

Medicine is made from grass and plants, sounding like "wish" or "promise".