Why is it das Erstaunen?

Erstaunen is the verb erstaunen used as a noun, and verbs used as nouns are always neuter: das Erstaunen.

More verbs used as nouns
Sense 1
das

Meaning

[1] Constitution of a person to have to be amazed at something

[1] Verfassung einer Person, über etwas staunen zu müssen

Examples

[1] The magician put his audience in astonishment

[1] Der Magier versetzte sein Publikum in Erstaunen.

[1] The astonishment stood in the face of her face

[1] Das Erstaunen stand ihr ins Gesicht geschrieben.
More source examples (2)

These dictionary examples can include historical and less common uses.

[1] "Schlump looked at him with limitless astonishment and did not answer"

[1] „Schlump sah ihn mit grenzenlosem Erstaunen an und antwortete nicht.“

[1] "To my astonishment, I also found him in a kind of farewell mood"

[1] „Zu meinem Erstaunen fand ich auch ihn in einer Art Abschiedsstimmung.“

Declension

1 Singular Plural
Nominativ das Erstaunen —
Genitiv des Erstaunens —
Dativ dem Erstaunen —
Akkusativ das Erstaunen —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary