Why is it die Dekadenz?

Dekadenz ends in -enz, and nouns ending in -enz are feminine: in a German dictionary, 97% of them take die.

All nouns ending in -enz
Sense 1
die

Meaning

[1] Decay, degeneration, moral and cultural decline

[1] Verfall, Entartung, sittlicher und kultureller Niedergang

Examples

[1] Their behavior testifies to advanced decades

[1] Ihr Verhalten zeugt von fortgeschrittener Dekadenz.

[1] This culture was by no means lacking decade signage

[1] Es fehlte dieser Kultur keineswegs an Dekadenzerscheinungen.

Declension

1 Singular Plural
Nominativ die Dekadenz —
Genitiv der Dekadenz —
Dativ der Dekadenz —
Akkusativ die Dekadenz —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary