gāi

a step

Components
阝 meaning component

  Meaning component

  

hill, place

hill

亥 sound component

  Sound component

hài

  

12th terrestrial branch

Evolution

陔 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
陔 Clerical script Western Han dynasty (202 BC-9 AD)

Clerical script

Western Han dynasty (202 BC-9 AD)
陔 Regular script Modern

Regular script

Modern
Definitions

 

gāi

a step, a terrace, a grade a ledge; step; terrace