What's the plural form of exuberancy? Here's the word you're looking for.
Answer
The noun exuberancy can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be exuberancy.
However, in more specific contexts, the plural form can also be exuberancies e.g. in reference to various types of exuberancies
or a collection of exuberancies.