Declension table of ?mahābhairava

Masculine	Singular	Dual	Plural
Nominative	mahābhairavaḥ	mahābhairavau	mahābhairavāḥ
Vocative	mahābhairava	mahābhairavau	mahābhairavāḥ
Accusative	mahābhairavam	mahābhairavau	mahābhairavān
Instrumental	mahābhairaveṇa	mahābhairavābhyām	mahābhairavaiḥ mahābhairavebhiḥ
Dative	mahābhairavāya	mahābhairavābhyām	mahābhairavebhyaḥ
Ablative	mahābhairavāt	mahābhairavābhyām	mahābhairavebhyaḥ
Genitive	mahābhairavasya	mahābhairavayoḥ	mahābhairavāṇām
Locative	mahābhairave	mahābhairavayoḥ	mahābhairaveṣu

Compound mahābhairava -

Adverb -mahābhairavam -mahābhairavāt