TSUMUGU · TOCFL B2 (est.) · 字
幅
幅 ＝ 巾 ＋ 畐
ㄈㄨˊ · fú
noun — width of cloth; a measure word for flat things (paintings, cloth)
字源 FORM — what the parts do
畐聲fú — gives the sound
A length of cloth (巾) with 畐 fú for the sound — exact, no drift. The original is the width of a woven bolt; from there, the breadth of anything flat, and the measure word for it: 幅度、一幅畫. The same 畐 builds 福、富.
故事 STORY — a scene to remember it by
把布（巾）攤開，量一量左右兩邊有多寬。
The cloth (巾) laid out flat; you measure edge to edge how wide it runs.
字源記憶法
意 · Meanings
(本義)布幅、幅寬— width of a cloth bolt
→幅度、篇幅— breadth, extent常用
→一幅畫— measure word for flat things
(本義) original meaning · → ⇒ each arrow = one more step of extension