Declension table of ?sahasravat

Masculine	Singular	Dual	Plural
Nominative	sahasravān	sahasravantau	sahasravantaḥ
Vocative	sahasravan	sahasravantau	sahasravantaḥ
Accusative	sahasravantam	sahasravantau	sahasravataḥ
Instrumental	sahasravatā	sahasravadbhyām	sahasravadbhiḥ
Dative	sahasravate	sahasravadbhyām	sahasravadbhyaḥ
Ablative	sahasravataḥ	sahasravadbhyām	sahasravadbhyaḥ
Genitive	sahasravataḥ	sahasravatoḥ	sahasravatām
Locative	sahasravati	sahasravatoḥ	sahasravatsu

Compound sahasravat -

Adverb -sahasravantam