TSUMUGU · B1 (est.) · 字
證
ㄓㄥˋ · zhèng
verb — to prove, to verify; (noun) evidence, a certificate
字源 FORM — what the parts do
ITdēng → zhèng — the initial and tone shift, the rhyme holds
Words (言) with 登 dēng for the sound, worn from d to zh. You bring your words up before authority to attest a thing — to testify, to prove, and the proof itself: 證明、證據、身分證.
故事 STORY — a scene to remember it by
一句話（言）呈上去（登），把事情坐實——證明了。
The words (言) are brought up (登) and made to stand — the thing is proven.
字源記憶法
意 · Meanings
(本義)作證、證明— to testify, to prove常用
→證據、證物— evidence, proof常用
⇒身分證、證件— a certificate, an ID
(本義) original meaning · → ⇒ each arrow = one more step of extension