yǎn

tall mountain

represents a mountain and represents a cliff. Both used here to convey the landscape-related meaning. Variant of .

Components
山 meaning component

  Meaning component

shān

  

mountain

厂 meaning component

  Meaning component

hǎnchǎng

  

cliff, (roof)

Evolution

屵 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
屵 Regular script Modern

Regular script

Modern
Definitions

 

yǎn

tall mountain

Sources

季旭昇《說文新證》p.722

何琳儀《戰國古文字典:戰國文字聲系》p.978