TSUMUGU · TOCFL B2 (est.) · 字
嫂
嫂 ＝ 女 ＋ 叟
ㄙㄠˇ · sǎo
noun — elder brother's wife, sister-in-law
字源 FORM — what the parts do
叟聲sǒu — gives the soundan old man, hand and torch in a house
FTsǒu → sǎo — the rime and tone shift, the s holds
女 beside 叟 — an elder, the senior in the household. 叟 carries the sound, sǒu shifted to sǎo with the s kept. The graph names the elder brother's wife: 大嫂、嫂子.
故事 STORY — a scene to remember it by
哥哥的妻子（女）在屋裡張羅，比你年長一截（叟）。
The elder brother's wife (女) keeps the house in order — a step senior (叟) to you.
字源記憶法
意 · Meanings
(本義)大嫂— elder brother's wife常用
→嫂子— sister-in-law
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
叟sǒuthe sound donor — 嫂 sets a woman to its left搜＝ 扌 ＋ sōuthe cousin in sound — hand 扌 in place of , both off