髪かみ洗あらい粉こ

noun

hair-washing powder; powder shampoo

A traditional powder used for cleaning hair, often made from natural ingredients like rice bran or clay. Now somewhat old-fashioned, replaced by modern liquid shampoos.

• 昔むかしは髪かみ洗あらい粉こを使つかって髪かみを洗あらっていた。