αἰώνων. (aionon) in Revelation 22:5: Noun Genitive Plural Masculine

Noun: the word names a reality of time or age, and here it works as a time noun in the closing clause.

Genitive: the form usually marks a possessive, descriptive, or relational link, and here it belongs to the phrase pattern around repeated ages.

Plural: the form is grammatically plural in this occurrence, which supports a layered or intensified time expression in context.

Masculine: the noun belongs to the masculine grammatical class, but that grammar does not by itself make a gendered theological claim.

τοὺς αἰῶνας

The genitive is governed by the preceding plural noun phrase, forming the familiar chain 'the ages of the ages' as a way to express an enduring span.

It functions within a genitive-of-relationship style phrase that qualifies the preceding accusative, reinforcing the sense of unending duration.

It is not a separate subject, and it does not on its own define who reigns or how the reign works.

High: The genitive chain shapes the closing promise of endless reign.

Idiomatic genitive chain for duration. intensifies the duration of the reign in an idiomatic time phrase. Attached to the ages of the ages. Governed by the time expression after the verb for reigning. The phrase functions as an idiom for enduring duration, not as a standalone lexical calculation.

How long is the reign described to last? The phrase communicates enduring reign, commonly rendered 'forever and ever.'

Direct: The genitive plural directly supports the idiomatic rendering 'forever and ever.'

The phrase is idiomatic, so the interpretation should come from the whole expression rather than one noun ending. The plural genitive contributes to duration language but does not by itself define every use of age language.

Age always means a limited era: The local phrase and apocalyptic blessing context determine the duration sense here. genitive chain creates a hidden doctrine: The grammar supports the time expression; the verse supplies the claim about reign.

The Textus Receptus witness reads 'καὶ βασιλεύσουσιν εἰς τοὺς αἰῶνας τῶν αἰώνων,' with the form inside the final time phrase.

The lemma αἰών refers to an age, an epoch, or an extended period of time, and the lexicon data allows a long-duration sense here.

The plural genitive joins the accusative phrase to produce a strong idiom of extended time, so the grammar serves the clause's assurance of continuing reign.

In context, the line says the servants will reign without limit as God provides light, so the phrase communicates enduring sovereignty rather than a short or temporary rule.

This fits the book's wider pattern of finality and consummation, where God's reign and the saints' participation are presented in climactic, lasting terms.

For readers and teachers, the form helps express permanence, fullness, and doxological emphasis in a compact Greek idiom.

Do not infer from the case or number alone a precise mathematical duration, a new doctrine of time, or a change in the lemma's meaning.