Nouns ending in -f or -fe typically change to -ves in the plural form.
Vouchsafe is regular. It follows the -ves Conversion rule.
Use plural verbs: "The vouchsaves are ready" (not "is ready").
Yes. The plural vouchsaves is standard across all English variants.
The word vouchsafe follows the standard English pluralization rule. When forming the plural, vouchsafe becomes vouchsaves. This follows the -ves Conversion pattern, which is one of the most common plural rules in English.
Understanding why vouchsafe becomes vouchsaves helps with spelling and pronunciation. Nouns ending in -f or -fe typically change to -ves in the plural form.
When using vouchsaves in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The vouchsaves are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.