What does the suffix cola mean?

The suffix "cola" doesn't have a specific meaning in English. It is usually used to refer to a type of carbonated beverage, specifically cola beverages, like Coca-Cola.

The word "cola" itself comes from the kola nut, which is a caffeine-rich nut used as a flavoring ingredient in cola drinks.

So, while "cola" doesn't have a specific meaning, it's associated with the taste and characteristics of cola beverages, like their distinctive flavor, carbonation, and caffeine content.