廷

Outer 廴 is the long-stride radical (Kangxi #54) — a curving leg-and-foot stretching out, distinct from the shorter 辶 walking radical. Indexing radical of 廷, marking it as a space where formal, ceremonial motion takes place. Same radical: 延 to extend, 建 to build, 廻 to circle back.

Inner 壬 is a stylised pictograph of a person standing on a platform of earth — exactly the imagery wanted for an imperial court: a sovereign or official standing at the centre of a ceremonial space. Combined with 廴 stretching outward, the full picture is the formal hall where audiences are held. Survives in 朝廷 imperial court, 法廷 tribunal.