TSUMUGU · TOCFL 2 (est.) · 字
姨
姨 ＝ 女 ＋ 夷
ㄧˊ · yí
noun — mother's sister, aunt (阿姨); wife's sister
字源 FORM — what the parts do
夷聲yí — gives the readinga man with a bound bow — level, at ease
A woman (女) and the sound 夷 (yí), carried straight across. This is the aunt on the mother's side, 阿姨、姨媽, and by extension the wife's sister, 姨子. 夷 alone draws a man with a bound bow (大 + 弓) — level, even-tempered, the far peoples; here only its sound is on loan. In everyday speech 阿姨 also stretches to any older woman you address politely.
故事 STORY — a scene to remember it by
女（女）字邊借個夷（夷）的音——母親那邊的姊妹，姨。
A woman (女) borrowing the sound of 夷 — the sister on the mother's side, 姨.
字源記憶法
意 · Meanings
(本義)姨媽、阿姨— mother's sister, aunt常用
→姨子— wife's sister
⇒阿姨（泛稱）— a polite term for an older woman常用
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
夷yíthe sound donor, standing alone — to level; the far peoples痍yíshares , kept the reading — 疒 over it (a wound)