Declension table of ?pañcaviṃśatirātra

Neuter	Singular	Dual	Plural
Nominative	pañcaviṃśatirātram	pañcaviṃśatirātre	pañcaviṃśatirātrāṇi
Vocative	pañcaviṃśatirātra	pañcaviṃśatirātre	pañcaviṃśatirātrāṇi
Accusative	pañcaviṃśatirātram	pañcaviṃśatirātre	pañcaviṃśatirātrāṇi
Instrumental	pañcaviṃśatirātreṇa	pañcaviṃśatirātrābhyām	pañcaviṃśatirātraiḥ
Dative	pañcaviṃśatirātrāya	pañcaviṃśatirātrābhyām	pañcaviṃśatirātrebhyaḥ
Ablative	pañcaviṃśatirātrāt	pañcaviṃśatirātrābhyām	pañcaviṃśatirātrebhyaḥ
Genitive	pañcaviṃśatirātrasya	pañcaviṃśatirātrayoḥ	pañcaviṃśatirātrāṇām
Locative	pañcaviṃśatirātre	pañcaviṃśatirātrayoḥ	pañcaviṃśatirātreṣu

Compound pañcaviṃśatirātra -

Adverb -pañcaviṃśatirātram -pañcaviṃśatirātrāt