• 亥(twelfth earthly branch (pig))
• 刂(blade; knife edge)

Using a knife to carve into a surface creates a deep mark.

• 木(wood; tree)
• 反(flip over; reverse; return)

A wooden board is made by splitting the tree trunk upside down.

• 爪(hand/claw (pressing down))
• 卩(person kneeling; kneeling figure)

Using a hand pressing down on a kneeling person to seal creates a stamp or seal of authority.

• 亥(twelfth earthly branch (pig))
• 刂(blade; knife edge)

Using a knife to carve into a surface creates a deep mark.

• 木(wood; tree)
• 反(flip over; reverse; return)

A wooden board is made by splitting the tree trunk upside down.

• 爪(hand/claw (pressing down))
• 卩(person kneeling; kneeling figure)

Using a hand pressing down on a kneeling person to seal creates a stamp or seal of authority.