核战斗部

• 木(tree; wood)RADICAL
• 亥(pig (12th zodiac sign))PHONETIC

The kernel of a tree fruit (木) sounds like the character for pig (亥).

• 斗(ladle for wine (pictographic))ASSOCIATIVE

A ladle with a handle used for scooping wine or measuring grain in ancient times.

• 咅(sound reading (radical/section))PHONETIC
• 阝(village; region)RADICAL

A section of land divided by distinct sounds becomes a region's administrative division.