TSUMUGU · TOCFL 1 · 字
妹
ㄇㄟˋ · mèi
noun — younger sister
字源 FORM — what the parts do
{m,w}Iwèi → mèi — 妹 keeps an old m- that 未 itself wore away
The younger girl (女) of the family. 未 gives the sound — 妹 keeps an old m- that 未 itself wore away; the 未 row splits down both roads: 味 wèi、魅 mèi.
故事 STORY — a scene to remember it by
妹妹（女）小跑跟在後頭，喊：等等我。
The little sister (女) trots behind, calling — wait for me.
字源記憶法
意 · Meanings
(本義)妹妹— younger sister常用
→姊妹— sisters — elder and younger together
(本義) original meaning · → ⇒ each arrow = one more step of extension