What's the plural form of permutability? Here's the word you're looking for.
Answer
The noun permutability can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be permutability.
However, in more specific contexts, the plural form can also be permutabilities e.g. in reference to various types of permutabilities
or a collection of permutabilities.
Examples
This book is aimed at graduate students and senior researchers interested in the study of products and permutability of finite groups.