brushing
The act of brushing something, such as hair, teeth, or a surface. Often used in compound verbs like ブラシをかける.
I brush my hair every morning.
Brushing the dog once a week is enough.
Compound of ブラシ (brush) and 掛け (かけ, from 掛ける, 'to apply'). The exact derivation is straightforward; the word is a modern formation.