TSUMUGU · TOCFL B1 (est.) · 字
刃
刃 ＝ 刀 ＋ 丶
ㄖㄣˋ · rèn
noun — the edge, the blade of a knife
字源 FORM — what the parts do
丶形a stroke marking where the edge bites
A knife (刀) with one added stroke (丶) set against its cutting side — the mark points straight at the sharp edge. The blade itself, and from it everything done with one: 刀刃、兵刃、迎刃而解.
故事 STORY — a scene to remember it by
刀（刀）身上點一筆（丶）——就點在最利的那條邊上。
One mark (丶) set on the knife (刀) — right on its keenest edge.
字源記憶法
意 · Meanings
(本義)刀刃、刃口— the blade, the cutting edge常用
→兵刃— weapons — what carries an edge常用
(本義) original meaning · → ⇒ each arrow = one more step of extension