Declension table of ?śīvan

Neuter	Singular	Dual	Plural
Nominative	śīva	śīvnī śīvanī	śīvāni
Vocative	śīvan śīva	śīvnī śīvanī	śīvāni
Accusative	śīva	śīvnī śīvanī	śīvāni
Instrumental	śīvnā	śīvabhyām	śīvabhiḥ
Dative	śīvne	śīvabhyām	śīvabhyaḥ
Ablative	śīvnaḥ	śīvabhyām	śīvabhyaḥ
Genitive	śīvnaḥ	śīvnoḥ	śīvnām
Locative	śīvni śīvani	śīvnoḥ	śīvasu

Compound śīva -

Adverb -śīva -śīvam