Declension table of ?śiśiśvayiṣvas

Neuter	Singular	Dual	Plural
Nominative	śiśiśvayiṣvat	śiśiśvayiṣuṣī	śiśiśvayiṣvāṃsi
Vocative	śiśiśvayiṣvat	śiśiśvayiṣuṣī	śiśiśvayiṣvāṃsi
Accusative	śiśiśvayiṣvat	śiśiśvayiṣuṣī	śiśiśvayiṣvāṃsi
Instrumental	śiśiśvayiṣuṣā	śiśiśvayiṣvadbhyām	śiśiśvayiṣvadbhiḥ
Dative	śiśiśvayiṣuṣe	śiśiśvayiṣvadbhyām	śiśiśvayiṣvadbhyaḥ
Ablative	śiśiśvayiṣuṣaḥ	śiśiśvayiṣvadbhyām	śiśiśvayiṣvadbhyaḥ
Genitive	śiśiśvayiṣuṣaḥ	śiśiśvayiṣuṣoḥ	śiśiśvayiṣuṣām
Locative	śiśiśvayiṣuṣi	śiśiśvayiṣuṣoḥ	śiśiśvayiṣvatsu

Compound śiśiśvayiṣvat -

Adverb -śiśiśvayiṣvat