TSUMUGU · B1 (est.) · 字
盡
盡 ＝ 皿 ＋ 聿
ㄐㄧㄣˋ · jìn
verb — to exhaust, use up; to the utmost
字源 FORM — what the parts do
皿義a vessel, dish
聿形a hand holding a brush — here scrubbing the dish clean
A hand with a brush (聿) above a vessel (皿) — scrubbing the bowl out to the last scrap, the dish wiped empty. From the emptied vessel: used up, exhausted, nothing left — 用盡、盡頭. And from there, doing a thing to its very limit: 盡力, 盡量.
故事 STORY — a scene to remember it by
拿刷子（聿）把碗（皿）刷到一點不剩——盡了。
A brush (聿) scrubs the bowl (皿) clean to the last scrap — all gone.
字源記憶法
意 · Meanings
(本義)用盡、耗盡— to use up, exhaust常用
→盡頭、無窮無盡— the very end; without end
⇒盡力、盡量— to the utmost — do all one can常用
(本義) original meaning · → ⇒ each arrow = one more step of extension