Declension table of ?mahāplava

Masculine	Singular	Dual	Plural
Nominative	mahāplavaḥ	mahāplavau	mahāplavāḥ
Vocative	mahāplava	mahāplavau	mahāplavāḥ
Accusative	mahāplavam	mahāplavau	mahāplavān
Instrumental	mahāplavena	mahāplavābhyām	mahāplavaiḥ mahāplavebhiḥ
Dative	mahāplavāya	mahāplavābhyām	mahāplavebhyaḥ
Ablative	mahāplavāt	mahāplavābhyām	mahāplavebhyaḥ
Genitive	mahāplavasya	mahāplavayoḥ	mahāplavānām
Locative	mahāplave	mahāplavayoḥ	mahāplaveṣu

Compound mahāplava -

Adverb -mahāplavam -mahāplavāt