TSUMUGU · TOCFL B1 (est.) · 字
幽
幽 ＝ 山 ＋ 幺
ㄧㄡ · yōu
adj — secluded, dim, hidden, quiet
字源 FORM — what the parts do
幺義a tiny thread — twice, very faint
Two tiny threads (幺幺) buried inside a mountain (山): things so small and so deep in the hills you can barely see them. That is the hidden, the dim, the secluded: 幽靜、幽暗、幽谷.
故事 STORY — a scene to remember it by
山（山）的深處，兩縷細絲（幺幺）藏在影子裡，要走到跟前才看得見。
Deep in the mountain (山), two faint threads (幺幺) hide in shadow — you must come close to see them at all.
字源記憶法
意 · Meanings
(本義)幽隱、幽暗— hidden, dim常用
→幽靜、幽谷— secluded, quiet
→幽默— humor (借音 from English)
(本義) original meaning · → ⇒ each arrow = one more step of extension