IPA: /ˈpɜːr.tʃə.sə.bəl/
KK: /ˈpɜrʧəsəbl/
Able to be bought or obtained through payment.
The new video game is purchasable online.
Purchasable → It is formed from "purchase" (from Old French *pourchacier*, meaning to pursue or seek) and "-able" (meaning capable of). The word "purchasable" means capable of being purchased or bought.
Think of 'pursuing' something ('pourchacier') to 'buy' it, and the '-able' means it can be done. This helps you remember that 'purchasable' refers to something that can be bought.