Radical ⼠ (33)

Shang (Shi)	Shang (Shi)	Shang (Shi)	Shang (Shi)	Shang (Shi-Bin)	Early W.Zhou	Early W.Zhou	Qin	E.Han	Nanbei (N.Wei)
合21405	合19946反	合21471反	合22327	合15496	集5421.2	集2314	睡.日甲5背	楊震碑	元愔墓誌

{士} *[dz]rəʔ “knight” & {王} *[w]aŋ “king”

Depiction of a downward-facing axe blade as a symbol of power. Initially it was used for both words {王} and {士}. Later it began to be used only for {士}.

• 林澐 1965 - 說王
• 季旭昇 2014 - 說文新證 [2nd ed.] (59-50)

Han	Han	W.Jin	Nara	Yuan	Meiji
武醫25	居舊265.2	索靖	平1-212	元0137X	地主名鑑

Shortening of 壹 based on the cursive form. Modern simplified form of 壹 in Japan.

• Bökset R. 2021 - Long Story of Short Forms: Simplified Chinese Characters from A to Z (339)

Shang (Bin)	Middle W.Zhou	Zhanguo (Qi)	Zhanguo (Qin)	Zhanguo (Qin)	Qin	Qin	W.Han	W.Han	E.Han	E.Han	Tang
合5411+合補6191正 [⿰食㱅]	集10175 [懿]	集3939 [懿]	陶錄6.56	駰乙.背	秦銘147	北.算丙	銀二1743	武.士相見9	史晨奏銘	白石神君碑	五經文字

{噎} *qˤi[k] “to choke” ♪→ {一/壹} *ʔit “one”

Shortened form of 㱅 (depiction of a person with something stuck in his mouth for {噎}). Later ♪吉 *KIT was added.

• 蔣玉斌 2013 - 甲骨綴合所得新字新形研究

Forms:

壱 - Shortening based on the cursive form. Modern simplified form in Japan.