Declension table of ?śiśiṣvas

Masculine	Singular	Dual	Plural
Nominative	śiśiṣvān	śiśiṣvāṃsau	śiśiṣvāṃsaḥ
Vocative	śiśiṣvan	śiśiṣvāṃsau	śiśiṣvāṃsaḥ
Accusative	śiśiṣvāṃsam	śiśiṣvāṃsau	śiśiṣuṣaḥ
Instrumental	śiśiṣuṣā	śiśiṣvadbhyām	śiśiṣvadbhiḥ
Dative	śiśiṣuṣe	śiśiṣvadbhyām	śiśiṣvadbhyaḥ
Ablative	śiśiṣuṣaḥ	śiśiṣvadbhyām	śiśiṣvadbhyaḥ
Genitive	śiśiṣuṣaḥ	śiśiṣuṣoḥ	śiśiṣuṣām
Locative	śiśiṣuṣi	śiśiṣuṣoḥ	śiśiṣvatsu

Compound śiśiṣvat -

Adverb -śiśiṣvas