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