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