TSUMUGU · B2 (est.) · 字
券
券 ＝ 刀 ＋ 龹
ㄑㄩㄢˋ · quàn
noun — a ticket, voucher, certificate, bond
字源 FORM — what the parts do
龹形the upper part — a worn phonetic, no longer readable in the glyph
A knife (刀) notches a tally along its edge: two parties split a scored stick, each half proving the deal. From the cut contract: 證券、債券、入場券、優惠券. The top once carried the sound; copying wore it past reading.
故事 STORY — a scene to remember it by
一根刻了齒口的木片，刀（刀）從中剖開——兩半對得上，就是憑證。
A stick scored with notches, split down the middle by the knife (刀) — the two halves match, and that match is the proof.
字源記憶法
意 · Meanings
(本義)契、契券— a tally, contract
→證券、債券— certificate, bond常用
⇒入場券、優惠券— ticket, coupon
(本義) original meaning · → ⇒ each arrow = one more step of extension