TSUMUGU · TOCFL 2 (est.) · 字
通
通 ＝ 辶 ＋ 甬
ㄊㄨㄥ · tōng
verb/adj — to go through; open, connected
字源 FORM — what the parts do
辶義walking — the road radical
甬聲yǒng — gives the sound
IT≠yǒng → tōng — the 甬 series splits t/y/s: 痛 tòng、桶 tǒng、勇 yǒng、誦 sòng
The road radical (辶) with 甬 for sound — to get all the way through. Roads that go through are 交通; words that get through are 溝通、通知; someone everything gets through to is 通 — an expert. The 甬 series split its sounds: 痛、桶 kept t, 勇 went to y.
故事 STORY — a scene to remember it by
最後一鏟挖下去，洞那頭透進光——這條路（辶）通了。
The last shovelful comes away and light breaks in from the far end — the road (辶) is through.
字源記憶法
意 · Meanings
(本義)通達、走得過去— to go through, reach
→交通、通車— traffic — roads open through常用
→通知、溝通— to notify, communicate — words getting through
→精通、通曉— to master — nothing blocks the way
(本義) original meaning · → ⇒ each arrow = one more step of extension