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