Why is it das Gestern?

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

Sense 1
das

Meaning

[1] as pars per toto: the past

[1] als Pars pro Toto: die Vergangenheit

Examples

[1] You still live yesterday

[1] Du lebst noch immer im Gestern.

Declension

1 Singular Plural
Nominativ das Gestern —
Genitiv des Gestern —
Dativ dem Gestern —
Akkusativ das Gestern —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary