小こ膝ひざ

noun

knee

Rare or archaic word for 'knee'; modern Japanese almost always uses ひざ (膝). May appear in historical texts or as a stylistic choice.

• 古こ文ぶんでは「こひざ」と書かいて膝ひざを指さすことがある。

  In classical texts, こひざ is sometimes written to mean the knee.