Declension table of ?sasyadvas

Masculine	Singular	Dual	Plural
Nominative	sasyadvān	sasyadvāṃsau	sasyadvāṃsaḥ
Vocative	sasyadvan	sasyadvāṃsau	sasyadvāṃsaḥ
Accusative	sasyadvāṃsam	sasyadvāṃsau	sasyaduṣaḥ
Instrumental	sasyaduṣā	sasyadvadbhyām	sasyadvadbhiḥ
Dative	sasyaduṣe	sasyadvadbhyām	sasyadvadbhyaḥ
Ablative	sasyaduṣaḥ	sasyadvadbhyām	sasyadvadbhyaḥ
Genitive	sasyaduṣaḥ	sasyaduṣoḥ	sasyaduṣām
Locative	sasyaduṣi	sasyaduṣoḥ	sasyadvatsu

Compound sasyadvat -

Adverb -sasyadvas