Declension table of ?saptadvīpa

Neuter	Singular	Dual	Plural
Nominative	saptadvīpam	saptadvīpe	saptadvīpāni
Vocative	saptadvīpa	saptadvīpe	saptadvīpāni
Accusative	saptadvīpam	saptadvīpe	saptadvīpāni
Instrumental	saptadvīpena	saptadvīpābhyām	saptadvīpaiḥ
Dative	saptadvīpāya	saptadvīpābhyām	saptadvīpebhyaḥ
Ablative	saptadvīpāt	saptadvīpābhyām	saptadvīpebhyaḥ
Genitive	saptadvīpasya	saptadvīpayoḥ	saptadvīpānām
Locative	saptadvīpe	saptadvīpayoḥ	saptadvīpeṣu

Compound saptadvīpa -

Adverb -saptadvīpam -saptadvīpāt