TSUMUGU · B1 (est.) · 字
霜
ㄕㄨㄤ · shuāng
noun — frost
字源 FORM — what the parts do
ITxiāng → shuāng — the initial hardens to shu, tone shifts
Under the weather sign 雨 — what the cold air lays down overnight: frost. 相 xiāng carries the sound, its initial hardening to shu. The same 相 builds 箱、湘.
故事 STORY — a scene to remember it by
一夜寒氣（雨），葉面上彼此相挨（相）的，全結成了白霜。
One cold night under the sky (雨), and the leaves lying against each other (相) are edged white with frost.
字源記憶法
意 · Meanings
(本義)霜— frost常用
→霜雪— frost and snow
⇒霜降— Frost's Descent — the solar term
(本義) original meaning · → ⇒ each arrow = one more step of extension