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