What's the plural form of imperiality? Here's the word you're looking for.
Answer
The noun imperiality can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be imperiality.
However, in more specific contexts, the plural form can also be imperialities e.g. in reference to various types of imperialities
or a collection of imperialities.
Politically the excluded Augustan Period is the paradigm of imperiality, and yet the style cannot be bundled with either the Silver Age or with Late Latin.