帰かえりがけ

noun, adverb

on the way back; while returning

Describes an action or event that occurs during the return journey. Often used adverbially with に.

• 帰かえりがけにコンビニに寄よった。

  I stopped by the convenience store on the way back.

noun, adverb

when about to go back; just before leaving

Refers to the moment just before departing to return. Often used in set phrases like 帰りがけに一言.

• 帰かえりがけに「ありがとう」と言いった。

  I said 'thank you' just before leaving.