TSUMUGU · B1 (est.) · 字
途
途 ＝ 辶 ＋ 余
ㄊㄨˊ · tú
noun — road, path, way; journey
字源 FORM — what the parts do
辶義the walk — a road and a foot
余聲yú — gives the sounda roofed post, a shelter
Iyú → tú — a t-onset grows on the bare vowel, the rhyme holds
The walk (辶) and 余 yú. The line a foot travels — the road, the way. From the road came the journey and the means: 旅途、途徑、中途. 余 lends the sound, a t-onset settling onto the open vowel, the same shift in 塗.
故事 STORY — a scene to remember it by
天還沒亮，他已上路（辶），前面的道一眼望不到頭。
Before dawn he is on the road (辶), the way ahead running out past where the eye can follow.
字源記憶法
意 · Meanings
(本義)路、道途— road, path常用
→旅途、途中— journey, on the way
⇒途徑— a way, an approach
(本義) original meaning · → ⇒ each arrow = one more step of extension