IPA: /ˈsɔːtəbl/
KK: /ˈsɔrtəbl/
Able to be arranged in a specific order or sequence.
The data in the spreadsheet is sortable by date or name.
Sortable → It is formed from "sort" (from Old French *sorte*, meaning a category or class) and "-able" (meaning capable of). The word "sortable" means capable of being categorized or arranged in a certain order.
Think of being able to 'categorize' ('sort') something — that's why 'sortable' means it can be sorted.