IPA: /ˈtʃiːpli/
KK: /ˈtʃipli/
In a way that does not cost much money; at a low price.
She bought the dress cheaply during the sale.
Cheaply → It is formed from "cheap" (from Old English *ceap*, meaning trade or bargain) and "-ly" (meaning in a manner of). The word "cheaply" means in a manner that is inexpensive or low in cost.
Think of making a 'trade' ('ceap') that costs little — that's why cheaply means to do something in an inexpensive way.