TSUMUGU · TOCFL A2 (est.) · 字
氏
ㄕˋ · shì
noun — clan, lineage; a family name; (honorific) Mr., Ms.
字源 FORM — what the parts do
氏形a low ladle-like stroke — read as a branching stem of a clan
A single curved stroke off a stem — read as the branch a clan splits into. From the family branch: lineage and the surname (姓氏), and the honorific tag after a name (張氏、攝氏).
故事 STORY — a scene to remember it by
主幹上斜伸出一條枝（氏）——一個家族，分出一支。
One branch curving off the main stem (氏) — a single clan, splitting off its line.
字源記憶法
意 · Meanings
(本義)氏族、家族— clan, lineage
→姓氏— a family name常用
⇒張氏、攝氏— the honorific after a name; a named scale
(本義) original meaning · → ⇒ each arrow = one more step of extension