くちずさむ
kuchizusamu

Godan Verb (mu)

1. to hum (a tune); to sing to oneself; to croon

Transitive
はは台所 だいどころでせっせと料理 りょうりしながら うた くちずさんでいた。
hahawa daidokorode sesseto ryōri shinagara utao kuchizusande ita.
Mother hummed to herself as she went about her cooking in the kitchen.
Other forms: