TSUMUGU · TOCFL 2 (est.) · 字
透
透 ＝ 辶 ＋ 秀
ㄊㄡˋ · tòu
verb — to pass through; adv — thoroughly
字源 FORM — what the parts do
辶義the walking foot — movement
IF≠xiù → tòu — initial and final both worn far from the donor
Movement (辶) with 秀 for the sound, worn far — xiù to tòu. Together they write passing clean through: light through glass 透明, rain through a coat 濕透, a look through a person 看透.
故事 STORY — a scene to remember it by
雨下了一夜，外套、毛衣、襯衫——水走（辶）到最裡面那一層。
Rain all night; coat, sweater, shirt — the water travels (辶) to the innermost layer.
字源記憶法
意 · Meanings
(本義)穿透、透過— to pass through常用
→透明— transparent — light let through
→濕透、看透— through and through — soaked, seen to the bottom
(本義) original meaning · → ⇒ each arrow = one more step of extension