Declension table of ?maṣṭavat

Masculine	Singular	Dual	Plural
Nominative	maṣṭavān	maṣṭavantau	maṣṭavantaḥ
Vocative	maṣṭavan	maṣṭavantau	maṣṭavantaḥ
Accusative	maṣṭavantam	maṣṭavantau	maṣṭavataḥ
Instrumental	maṣṭavatā	maṣṭavadbhyām	maṣṭavadbhiḥ
Dative	maṣṭavate	maṣṭavadbhyām	maṣṭavadbhyaḥ
Ablative	maṣṭavataḥ	maṣṭavadbhyām	maṣṭavadbhyaḥ
Genitive	maṣṭavataḥ	maṣṭavatoḥ	maṣṭavatām
Locative	maṣṭavati	maṣṭavatoḥ	maṣṭavatsu

Compound maṣṭavat -

Adverb -maṣṭavantam