故纸堆

• 古(ancient; old)PHONO-SEMANTIC
• 攵(hand holding stick to strike)RADICAL

An old story remembered through the teacher's whip strokes is the reason and cause.

• 糹(thread; silk fiber)RADICAL
• 氏(family; clan)PHONETIC

Paper is made from silk fibers, and the sound hint follows the character 氏.

• 土(earth; soil; land)RADICAL
• 隹(short-tailed bird)PHONETIC

Piles of earth stacked on top of each other like a flock of birds perched crowded together on the ground.