Declension table of ?sahasrāyus

Neuter	Singular	Dual	Plural
Nominative	sahasrāyuḥ	sahasrāyuṣī	sahasrāyūṃṣi
Vocative	sahasrāyuḥ	sahasrāyuṣī	sahasrāyūṃṣi
Accusative	sahasrāyuḥ	sahasrāyuṣī	sahasrāyūṃṣi
Instrumental	sahasrāyuṣā	sahasrāyurbhyām	sahasrāyurbhiḥ
Dative	sahasrāyuṣe	sahasrāyurbhyām	sahasrāyurbhyaḥ
Ablative	sahasrāyuṣaḥ	sahasrāyurbhyām	sahasrāyurbhyaḥ
Genitive	sahasrāyuṣaḥ	sahasrāyuṣoḥ	sahasrāyuṣām
Locative	sahasrāyuṣi	sahasrāyuṣoḥ	sahasrāyuḥṣu

Compound sahasrāyus -

Adverb -sahasrāyus