TSUMUGU · TOCFL 2 (est.) · 字
廁
廁 ＝ 广 ＋ 則
ㄘㄜˋ · cè
noun — toilet, latrine
字源 FORM — what the parts do
广義a building, a roof
{ts,tsh}Izé → cè — sibilant initial shifts
A roofed structure (广) over 則 zé, which carries the sound, worn from zé toward cè. The old sense was the place you keep clean (清也) — the building set apart for it. From that came the plain word: 廁所, the toilet.
故事 STORY — a scene to remember it by
屋子（广）角落隔出一間，門關上——那是廁所。
A small room (广) partitioned off in the corner, door shut — the toilet.
字源記憶法
意 · Meanings
(本義)廁所、公廁— toilet, latrine常用
→廁身— to place oneself among — to take part
(本義) original meaning · → ⇒ each arrow = one more step of extension