TSUMUGU · C1 (est.) · 字
嘆
嘆 ＝ 口 ＋ 𦰩
ㄊㄢˋ · tàn
verb — to sigh; to exclaim, praise
字源 FORM — what the parts do
𦰩聲the 漢-series sound pieceworn into the right side; the same body inside 漢、難、灘
IFthe 𦰩 series runs across several initials — 漢 hàn, 難 nán, 灘 tān — and the reading here lands on tàn
A long breath out of the mouth (口); 𦰩 on the right carries the sound, the same body worn into 漢、難、灘. The breath runs to grief or to wonder alike — 嘆氣、讚嘆. The twin 歎 writes 欠 (an open mouth gasping) in place of 口.
故事 STORY — a scene to remember it by
嘴（口）一張，一口長氣放出來——唉，嘆一聲。
The mouth (口) opens and a long breath goes out — a sigh.
字源記憶法
意 · Meanings
(本義)嘆息、嘆氣— to sigh常用
→感嘆、讚嘆— to exclaim; to marvel, praise常用
(本義) original meaning · → ⇒ each arrow = one more step of extension