Declension table of ?samudraga

Neuter	Singular	Dual	Plural
Nominative	samudragam	samudrage	samudragāṇi
Vocative	samudraga	samudrage	samudragāṇi
Accusative	samudragam	samudrage	samudragāṇi
Instrumental	samudrageṇa	samudragābhyām	samudragaiḥ
Dative	samudragāya	samudragābhyām	samudragebhyaḥ
Ablative	samudragāt	samudragābhyām	samudragebhyaḥ
Genitive	samudragasya	samudragayoḥ	samudragāṇām
Locative	samudrage	samudragayoḥ	samudrageṣu

Compound samudraga -

Adverb -samudragam -samudragāt