Declension table of ?jahasvas

Masculine	Singular	Dual	Plural
Nominative	jahasvān	jahasvāṃsau	jahasvāṃsaḥ
Vocative	jahasvan	jahasvāṃsau	jahasvāṃsaḥ
Accusative	jahasvāṃsam	jahasvāṃsau	jahasuṣaḥ
Instrumental	jahasuṣā	jahasvadbhyām	jahasvadbhiḥ
Dative	jahasuṣe	jahasvadbhyām	jahasvadbhyaḥ
Ablative	jahasuṣaḥ	jahasvadbhyām	jahasvadbhyaḥ
Genitive	jahasuṣaḥ	jahasuṣoḥ	jahasuṣām
Locative	jahasuṣi	jahasuṣoḥ	jahasvatsu

Compound jahasvat -

Adverb -jahasvas