entries → 輕
TSUMUGU · TOCFL 1 (est.) · 字
輕 character · TOCFL 1 (est.)
輕 ＝ 車 ＋ 巠
ㄑㄧㄥ · qīng
adj — light (in weight); easy, effortless

字源 FORM — what the parts do

車義a cart, a vehiclethe cart seen from above, axle and wheels
巠聲jīng — gives the sound, worn from j to qstraight warp-threads (巛) strung on a frame (工)
{g,k,j/q}Ijīng → qīng — the {g,k} initial palatalized to q
A light war-cart (車) — 輕車, quick and unburdened. 巠 jīng carries the sound, the initial softened to q. From the light vehicle, anything light in weight, then anything effortless: 輕重、輕鬆、輕易. The same 巠 also strings 經、徑、頸.

故事 STORY — a scene to remember it by

戰車（車）卸空了，巠（巠）那樣的直線一拉就走——輕。
The war-cart (車) stripped bare, pulling away straight (巠) and quick — that lightness is 輕.
字源記憶法
意 · Meanings
(本義)輕車— a light cart, a light chariot
→輕重— light in weight常用
⇒輕鬆、輕易— easy, effortless常用
⇒輕率— frivolous, taking lightly
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
重zhòngthe opposite weight — 重 piles a load on a standing figure; 輕 empties the cart經＝ 糸 ＋ 巠jīngthe 巠-series sibling — 經 strings 巠 with silk (糸) instead of the cart
演 · Evolution
說文寫的聲符是 坙，傳抄磨成了今天的 巠，當年的經線幾乎成了直筆。
說文 writes the phonetic as 坙; copying smoothed it to the modern 巠, the warp-threads now nearly straight strokes.