TSUMUGU · C1 (est.) · 字
殘
殘 ＝ 歹 ＋ 戔
ㄘㄢˊ · cán
adj/verb — damaged, leftover; cruel; to harm
字源 FORM — what the parts do
戔聲jiān — gives the soundtwo spears (戈) hacking — to wound
IFjiān → cán — the reading shifted off the donor
The death-bone (歹) with 戔 jiān, two spears hacking, the sound. To wound, to maim — and from the maimed thing, the broken remainder: 殘破, 殘餘. 戔 carries the sound, shifted to cán. 戔 also frames 錢 qián, 淺 qiǎn, 線 xiàn.
故事 STORY — a scene to remember it by
兩戈相砍（戔），剩一地碎骨（歹）——殘。
Two spears hacking (戔), and only splintered bone (歹) left — ruined.
字源記憶法
意 · Meanings
(本義)殘害、傷殘— to harm, maim常用
→殘破、殘餘— damaged; leftover, remnant常用
⇒殘忍、兇殘— cruel, savage
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
戔jiānthe sound donor — two hacking spears; the wound it names淺＝ 氵 ＋ qiǎnthe sibling — 淺 sets by 氵 (shallow water); 殘 by (the harm)