TSUMUGU · A2 (est.) · 字
偷
偷 ＝ 亻 ＋ 俞
ㄊㄡ · tōu
verb — to steal; to do on the sly
字源 FORM — what the parts do
亻義a person
俞聲yú — gives the soundthe dugout-canoe graph
ITyú → tōu — the initial jumps right off, irregular
A person (亻) who takes on the sly — the old gloss 苟且, doing things by the cut corner. 俞 yú lends the sound, and here it lurches off track to t-. From the sneaking, the sense spreads: 偷東西 steal, 偷懶 slack off, 偷閒 snatch a free moment. The 俞 series runs 愉、輸、逾.
故事 STORY — a scene to remember it by
人（亻）手伸過去，不出聲——拿了就走。
A person (亻) reaches across, makes no sound — takes it and goes.
字源記憶法
意 · Meanings
(本義)偷竊— to steal常用
→偷偷— on the sly; secretly常用
→偷懶、偷閒— to slack; to snatch a free moment
(本義) original meaning · → ⇒ each arrow = one more step of extension