Why is it das Altern?

Altern ends in the word der Ern. Compounds usually take the article of their last word, but this one is an exception: das Altern.

Sense 1
das

Meaning

[1] getting older

[1] Älterwerden

Examples

[1] The aging of the wine increases its aromaä

[1] Das Altern des Weines erhöht sein Aroma.

Declension

1 Singular Plural
Nominativ das Altern —
Genitiv des Alterns —
Dativ dem Altern —
Akkusativ das Altern —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary