供过于求

• 亻(person; human)RADICAL
• 共(together; common)PHONO-SEMANTIC

People together lifting something up—that is the meaning of the character for supply.

• 辶(step; move)RADICAL
• 寸(inch; unit of measurement)PHONETIC

One small step of the foot gets you across and past that place.

• 于(at; in (pictographic — curved stroke representing breath escaping))ASSOCIATIVE

Breath curves and escapes from a person, meaning 'at' or 'in' a place.

• 水(water)RADICAL

A fur robe that holds water symbolizes asking or seeking for something precious.