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