Declension table of ?sahasranayana

Neuter	Singular	Dual	Plural
Nominative	sahasranayanam	sahasranayane	sahasranayanāni
Vocative	sahasranayana	sahasranayane	sahasranayanāni
Accusative	sahasranayanam	sahasranayane	sahasranayanāni
Instrumental	sahasranayanena	sahasranayanābhyām	sahasranayanaiḥ
Dative	sahasranayanāya	sahasranayanābhyām	sahasranayanebhyaḥ
Ablative	sahasranayanāt	sahasranayanābhyām	sahasranayanebhyaḥ
Genitive	sahasranayanasya	sahasranayanayoḥ	sahasranayanānām
Locative	sahasranayane	sahasranayanayoḥ	sahasranayaneṣu

Compound sahasranayana -

Adverb -sahasranayanam -sahasranayanāt