TSUMUGU · TOCFL 2 (est.) · 字
相
ㄒㄧㄤ · xiāng/xiàng
adverb — mutually, each other; (xiàng) appearance; to look over
字源 FORM — what the parts do
An eye (目) set on a tree (木) — looking a thing over, sizing the timber. Read xiàng, the looking and what looking finds: the face (長相), the photo (相片), the minister who watches over (宰相). Read xiāng, the looking goes both ways: each other — 互相、相關.
故事 STORY — a scene to remember it by
眼睛（目）沿著樹幹（木）上下打量——這根料子，直不直？
An eye (目) runs up and down the trunk (木) — is this timber straight?
字源記憶法
意 · Meanings
xiāng
(引申)互相、相關— each other; mutual — looking both ways常用
xiàng
(本義)察看（相馬）— to look over, size up
→長相、相片— the looks; the picture常用
→宰相— the minister — the one who watches over
(本義) original meaning · → ⇒ each arrow = one more step of extension