This is the 4628th most frequent Japanese word.
払い
"払う" (はらう) means "to pay" or "to clear away."
Here, '払い' is used to mean 'payment,' referring to financial transactions or fees.
彼は月額の払いを忘れました。
He forgot the monthly payment.
In this context, '払い' is used to mean 'to brush off' or 'to clear away,' indicating a physical action of removal.
その汚れを払い落としました。
I brushed off that dirt.
Here, '払い' is utilized metaphorically to mean 'to dispel' or 'to remove doubts.'