Declension table of ?ekaviṃśaka

Neuter	Singular	Dual	Plural
Nominative	ekaviṃśakam	ekaviṃśake	ekaviṃśakāni
Vocative	ekaviṃśaka	ekaviṃśake	ekaviṃśakāni
Accusative	ekaviṃśakam	ekaviṃśake	ekaviṃśakāni
Instrumental	ekaviṃśakena	ekaviṃśakābhyām	ekaviṃśakaiḥ
Dative	ekaviṃśakāya	ekaviṃśakābhyām	ekaviṃśakebhyaḥ
Ablative	ekaviṃśakāt	ekaviṃśakābhyām	ekaviṃśakebhyaḥ
Genitive	ekaviṃśakasya	ekaviṃśakayoḥ	ekaviṃśakānām
Locative	ekaviṃśake	ekaviṃśakayoḥ	ekaviṃśakeṣu

Compound ekaviṃśaka -

Adverb -ekaviṃśakam -ekaviṃśakāt