Declension table of ?saptaśiva

Neuter	Singular	Dual	Plural
Nominative	saptaśivam	saptaśive	saptaśivāni
Vocative	saptaśiva	saptaśive	saptaśivāni
Accusative	saptaśivam	saptaśive	saptaśivāni
Instrumental	saptaśivena	saptaśivābhyām	saptaśivaiḥ
Dative	saptaśivāya	saptaśivābhyām	saptaśivebhyaḥ
Ablative	saptaśivāt	saptaśivābhyām	saptaśivebhyaḥ
Genitive	saptaśivasya	saptaśivayoḥ	saptaśivānām
Locative	saptaśive	saptaśivayoḥ	saptaśiveṣu

Compound saptaśiva -

Adverb -saptaśivam -saptaśivāt