TSUMUGU · TOCFL 2 (est.) · 字
忍
ㄖㄣˇ · rěn
verb — to endure, bear; to hold back
字源 FORM — what the parts do
Trèn → rěn — tone shifts off the donor
A blade's edge (刃) laid on the heart (心) — and you hold still. 刃 rèn carries the sound too. To bear it without moving: 忍受、忍耐、容忍.
故事 STORY — a scene to remember it by
刀刃（刃）就壓在心（心）口上，咬住牙，一聲不吭。
The blade's edge (刃) rests on the heart (心); teeth clench, not a sound.
字源記憶法
意 · Meanings
(本義)忍受、忍耐— to endure, bear常用
→忍住— to hold back, suppress
⇒殘忍— cruel — past all bearing
(本義) original meaning · → ⇒ each arrow = one more step of extension