Declension table of ?chaṣṭavat

Masculine	Singular	Dual	Plural
Nominative	chaṣṭavān	chaṣṭavantau	chaṣṭavantaḥ
Vocative	chaṣṭavan	chaṣṭavantau	chaṣṭavantaḥ
Accusative	chaṣṭavantam	chaṣṭavantau	chaṣṭavataḥ
Instrumental	chaṣṭavatā	chaṣṭavadbhyām	chaṣṭavadbhiḥ
Dative	chaṣṭavate	chaṣṭavadbhyām	chaṣṭavadbhyaḥ
Ablative	chaṣṭavataḥ	chaṣṭavadbhyām	chaṣṭavadbhyaḥ
Genitive	chaṣṭavataḥ	chaṣṭavatoḥ	chaṣṭavatām
Locative	chaṣṭavati	chaṣṭavatoḥ	chaṣṭavatsu

Compound chaṣṭavat -

Adverb -chaṣṭavantam