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