扇ぐ
あおぐ · aogu · JLPT N2 · verb-godan
to fan
🪭 扇 = 戸 door + 羽 feathers: a panel that flaps like wings
扇 alone means fan (read せん in 扇風機, electric fan). With the verb ending ぐ, the noun becomes the action: aogu, to fan or to flap. Sound hook: aogu sounds like ah, go! as you wave the heat away.
扇 — door 戶 + feather 羽
扇 combines 戶 (door) above 羽 (feathers), originally depicting a door-leaf made of woven feathers or a feathered fan that swings like a door. The image extended to flat hand-fans, then by association to anything that fans, fluffs, or stirs up — including the verb 'to fan' and a measure word for doors and windows.