TSUMUGU · B1 · 字
惱
惱 ＝ 忄 ＋ 𡿺
ㄋㄠˇ · nǎo
verb/adj — to vex, be annoyed
字源 FORM — what the parts do
忄義the heart, on the left — where the irritation sits
𡿺聲nǎo — the same right half as 腦, gives the soundthe worn-down brain element
The heart (忄) beside the element that 腦 nǎo also carries — it lends the sound and points at the head. A churning in the mind: thought that won't settle. The right half is the 腦 frame worn smooth; the same piece builds 腦、瑙.
故事 STORY — a scene to remember it by
一件事在心（忄）上、在腦（𡿺）裡轉個不停——煩。
One thing turns and turns, in the heart (忄) and in the head (𡿺) — vexation.
字源記憶法
意 · Meanings
(本義)煩惱— vexation, worry常用
→惱火— annoyed, irritated
→苦惱— distressed
(本義) original meaning · → ⇒ each arrow = one more step of extension