Declension table of ?pañcaviṃśaka

Neuter	Singular	Dual	Plural
Nominative	pañcaviṃśakam	pañcaviṃśake	pañcaviṃśakāni
Vocative	pañcaviṃśaka	pañcaviṃśake	pañcaviṃśakāni
Accusative	pañcaviṃśakam	pañcaviṃśake	pañcaviṃśakāni
Instrumental	pañcaviṃśakena	pañcaviṃśakābhyām	pañcaviṃśakaiḥ
Dative	pañcaviṃśakāya	pañcaviṃśakābhyām	pañcaviṃśakebhyaḥ
Ablative	pañcaviṃśakāt	pañcaviṃśakābhyām	pañcaviṃśakebhyaḥ
Genitive	pañcaviṃśakasya	pañcaviṃśakayoḥ	pañcaviṃśakānām
Locative	pañcaviṃśake	pañcaviṃśakayoḥ	pañcaviṃśakeṣu

Compound pañcaviṃśaka -

Adverb -pañcaviṃśakam -pañcaviṃśakāt