TSUMUGU · TOCFL 3 (est.) · 字
膚
膚 ＝ 月 ＋ 盧
ㄈㄨ · fū
noun — skin
字源 FORM — what the parts do
盧聲lú — gives the soundworn down to 虍 over 田 in the modern top; the bottom 皿 is gone
{l,f}Ilú → fū — the initial crosses
The flesh (月) that wraps the body — the skin. 盧 lú once sat above as the sound; copying wore it down so only 虍 and 田 remain on top, and the initial drifted from l to f. From skin: 皮膚, and the surface-only sense in 膚淺, shallow.
故事 STORY — a scene to remember it by
一層肉（月）裹在身子最外面——那是皮膚。
A layer of flesh (月) wrapping the outside of the body — that is the skin.
字源記憶法
意 · Meanings
(本義)皮膚— skin常用
→膚淺— shallow, superficial — only skin-deep
(本義) original meaning · → ⇒ each arrow = one more step of extension