entries → 暈
TSUMUGU · TOCFL B1 (est.) · 字
暈 character · TOCFL B1 (est.)
暈 ＝ 日 ＋ 軍
ㄩㄣ · yūn
noun/verb — a halo of light; to feel dizzy, faint

字源 FORM — what the parts do

日義the sun on top
軍聲jūn — gives the sound
IFTjūn → yūn — the j drops away, the vowel and tone slide
The sun (日) ringed in haze — a halo. 軍 jūn carries the sound, worn down to yūn. From the swimming ring of light, the head that swims with it: 頭暈、暈倒、光暈.

故事 STORY — a scene to remember it by

太陽（日）周圍罩一圈光，盯久了——頭也暈了。
A ring of light wraps the sun (日); stare long enough, and the head spins too.
字源記憶法
意 · Meanings
(本義)日暈、光暈— a halo of light常用
→頭暈、暈倒— dizzy, to faint常用
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
暉huīthe lookalike — both ring the sun 日 with 軍; 暉 keeps the j-sound for sunlight, 暈 wore down to yūn for the swimming head