Declension table of ?mahārava

Neuter	Singular	Dual	Plural
Nominative	mahāravam	mahārave	mahāravāṇi
Vocative	mahārava	mahārave	mahāravāṇi
Accusative	mahāravam	mahārave	mahāravāṇi
Instrumental	mahāraveṇa	mahāravābhyām	mahāravaiḥ
Dative	mahāravāya	mahāravābhyām	mahāravebhyaḥ
Ablative	mahāravāt	mahāravābhyām	mahāravebhyaḥ
Genitive	mahāravasya	mahāravayoḥ	mahāravāṇām
Locative	mahārave	mahāravayoḥ	mahāraveṣu

Compound mahārava -

Adverb -mahāravam -mahāravāt