TSUMUGU · TOCFL A1 (est.) · 字
疾
疾 ＝ 疒 ＋ 矢
ㄐㄧˊ · jí
noun/adj — illness, disease; fast, swift; to hate
字源 FORM — what the parts do
疒義sickness — a person on a bed
矢義an arrow — the sudden wound that struck the body
An arrow (矢) and the sickbed (疒) together — a hurt that strikes suddenly, hence illness. The arrow also lends its swiftness: from the sudden wound came 疾病, and the speed of 疾風, 疾駛. From the sting of it came hatred — 疾惡如仇.
故事 STORY — a scene to remember it by
一箭（矢）射來，人應聲倒下（疒）——疾。
An arrow (矢) strikes and the body drops (疒) at once — affliction, and the speed that brought it.
字源記憶法
意 · Meanings
(本義)病— illness, disease常用
→疾病、痼疾— sickness; a chronic ailment常用
⇒疾風、疾駛— swift (wind, driving)
⇒疾惡如仇— to hate (evil) bitterly
(本義) original meaning · → ⇒ each arrow = one more step of extension