IPA: /ˈtʃiːp.nəs/
KK: /tʃipnəs/
The quality or condition of being low in price or cost.
The cheapness of the product made it very popular among budget shoppers.
Cheapness → It is formed from "cheap" (from Old English *ceap*, meaning bargain or purchase) and "-ness" (meaning the state or quality of). The word "cheapness" refers to the quality of being inexpensive or low in price.
Think of the Old English word for bargain or purchase, 'ceap', to remember that 'cheapness' means the quality of being inexpensive.