Declension table of ?siṣyandvas

Masculine	Singular	Dual	Plural
Nominative	siṣyandvān	siṣyandvāṃsau	siṣyandvāṃsaḥ
Vocative	siṣyandvan	siṣyandvāṃsau	siṣyandvāṃsaḥ
Accusative	siṣyandvāṃsam	siṣyandvāṃsau	siṣyanduṣaḥ
Instrumental	siṣyanduṣā	siṣyandvadbhyām	siṣyandvadbhiḥ
Dative	siṣyanduṣe	siṣyandvadbhyām	siṣyandvadbhyaḥ
Ablative	siṣyanduṣaḥ	siṣyandvadbhyām	siṣyandvadbhyaḥ
Genitive	siṣyanduṣaḥ	siṣyanduṣoḥ	siṣyanduṣām
Locative	siṣyanduṣi	siṣyanduṣoḥ	siṣyandvatsu

Compound siṣyandvat -

Adverb -siṣyandvas