TSUMUGU · TOCFL 1 (est.) · 字
份
份 ＝ 亻 ＋ 分
ㄈㄣˋ · fèn
noun/measure — a portion, share; a copy (of)
字源 FORM — what the parts do
亻義a person — whose share it is
Tfēn → fèn — same sound, fourth tone for the portion
分 is a knife (刀) splitting a thing in two — it carries both the sound and the idea of dividing. Add a person (亻) and you get the share that falls to someone: a portion, 一份, 股份; the duty that is yours, 本份. The reading lifts to fèn.
故事 STORY — a scene to remember it by
東西（分）一切兩半，這半（亻）歸你——一份。
The thing is cut in two (分); this half goes to the person (亻) — one share.
字源記憶法
意 · Meanings
(本義)份量、一部分— a portion, a share常用
→一份、量詞— a copy; a measure word (一份報紙)常用
⇒本份、身份— one's due role, status
(本義) original meaning · → ⇒ each arrow = one more step of extension