Declension table of ?śaśvasvas

Neuter	Singular	Dual	Plural
Nominative	śaśvasvat	śaśvasuṣī	śaśvasvāṃsi
Vocative	śaśvasvat	śaśvasuṣī	śaśvasvāṃsi
Accusative	śaśvasvat	śaśvasuṣī	śaśvasvāṃsi
Instrumental	śaśvasuṣā	śaśvasvadbhyām	śaśvasvadbhiḥ
Dative	śaśvasuṣe	śaśvasvadbhyām	śaśvasvadbhyaḥ
Ablative	śaśvasuṣaḥ	śaśvasvadbhyām	śaśvasvadbhyaḥ
Genitive	śaśvasuṣaḥ	śaśvasuṣoḥ	śaśvasuṣām
Locative	śaśvasuṣi	śaśvasuṣoḥ	śaśvasvatsu

Compound śaśvasvat -

Adverb -śaśvasvat