IPA: /dɪsˈkaʊntəbl/
KK: /dɪsˈkaʊntəbl/
Able to be reduced in price or value.
The store offers many discountable items during the sale.
Discountable → It is formed from "dis-" (meaning apart) and "count" (from Latin "computare", meaning to calculate) and the suffix "-able" (meaning capable of). The word "discountable" refers to something that is capable of being calculated apart or deducted from a total.
Think of something that can be 'calculated apart' ('dis-') from the total amount — that's why discountable means it can be deducted.