故辙
gù​zhé

convention

故 gù incident, happening, cause

Phonosemantic compound. 攵 represents the meaning and 古 represents the sound.

Components

古
古 Sound component
gǔ old
攵
攵 Meaning component
pū tap

攵 is a component form of 攴.

Character Evolution

Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Early Spring and Autumn ~700 BC
Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartkuHkˤa(ʔ)-s fact; reason
kuHkˤaʔ-s old (not new)

說文解字

《說文》：“故，使為之也。从攴，古聲。”

Sources

Character origin
李学勤《字源》p.250
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

辙 zhé, chè wagon ruts Simplified

Something left 徹 by a cart 车 when it moves 

Components

车
车 Meaning component
chē cart, vehicle
徹
徹 SoundSimplified component
chè penetrate, thorough

Sources

Readings & variants
Unicode

轍 wagon ruts Traditional

Components

車
車 Meaning component
chē cart, vehicle

cart

徹
徹 SoundRemnant component
chè penetrate, thorough

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartdrjet[d]ret wheel-track

說文解字

《說文新附》：“轍，車迹也。从車，徹省聲。本通用徹，後人所加。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)