TSUMUGU · TOCFL 1 (est.) · 字
師
師 ＝ 𠂤 ＋ 帀
ㄕ · shī
noun — teacher, master; an army division
字源 FORM — what the parts do
𠂤義a heaped mound — a gathered multitude; flattened to the left side of the modern glyph
帀義a banner circling round — troops mustered under it
A mound of gathered men (𠂤, now squeezed into the left edge) under a circling banner (帀) — the old word was an army division, twenty-five hundred strong. The one who heads that body became the master, then the teacher: 老師、師傅. The left piece is worn nearly invisible; it is the crowd.
故事 STORY — a scene to remember it by
旗下站滿了人（𠂤），最前頭領隊的那個——師。
A banner, a crowd massed beneath it (𠂤), and the one out front leading them — the master.
字源記憶法
意 · Meanings
(本義)軍隊的師— an army division
→老師、師傅— teacher, master常用
⇒導師、宗師— mentor, grandmaster — the model others follow
(本義) original meaning · → ⇒ each arrow = one more step of extension