Declension table of ?siva

Masculine	Singular	Dual	Plural
Nominative	sivaḥ	sivau	sivāḥ
Vocative	siva	sivau	sivāḥ
Accusative	sivam	sivau	sivān
Instrumental	sivena	sivābhyām	sivaiḥ sivebhiḥ
Dative	sivāya	sivābhyām	sivebhyaḥ
Ablative	sivāt	sivābhyām	sivebhyaḥ
Genitive	sivasya	sivayoḥ	sivānām
Locative	sive	sivayoḥ	siveṣu

Compound siva -

Adverb -sivam -sivāt