TSUMUGU · TOCFL B2 (est.) · 字
慎
慎 ＝ 忄 ＋ 真
ㄕㄣˋ · shèn
adj — careful, cautious, prudent
字源 FORM — what the parts do
忄義the heart — held watchful
ITzhēn → shèn — initial and tone shift
The heart (忄) held watchful — 真 zhēn gives the sound, worn to shèn. To treat a thing as if it were true and weighty, and act with care: 謹慎、慎重.
故事 STORY — a scene to remember it by
心（忄）裡把每件事都當真（真）來掂量，一步不馬虎——慎。
The heart (忄) weighs each thing as if it were true (真), no careless step — to be cautious.
字源記憶法
意 · Meanings
(本義)謹慎、慎重— careful, cautious常用
→審慎、慎防— prudent; to guard against
(本義) original meaning · → ⇒ each arrow = one more step of extension