TSUMUGU · TOCFL 1 · 字
懂
懂 ＝ 忄 ＋ 董
ㄉㄨㄥˇ · dǒng
verb — to understand
字源 FORM — what the parts do
忄義the heart — where thinking sits
The heart (忄) takes it in — understanding; the old anatomy put thinking in the heart, so the mind-words wear 忄. 董 gives the sound, exactly. A late, plain-built character: 聽懂、看懂、懂事.
故事 STORY — a scene to remember it by
再聽一遍，心（忄）裡喀噠一聲，全對上了。
Once more through, and something clicks in the heart (忄) — it all lines up.
字源記憶法
意 · Meanings
(本義)懂— to understand常用
→聽懂、看懂— understood through ear and eye
→懂事— to know how things stand — sensible
(本義) original meaning · → ⇒ each arrow = one more step of extension