Declension table of ?nautana

Neuter	Singular	Dual	Plural
Nominative	nautanam	nautane	nautanāni
Vocative	nautana	nautane	nautanāni
Accusative	nautanam	nautane	nautanāni
Instrumental	nautanena	nautanābhyām	nautanaiḥ
Dative	nautanāya	nautanābhyām	nautanebhyaḥ
Ablative	nautanāt	nautanābhyām	nautanebhyaḥ
Genitive	nautanasya	nautanayoḥ	nautanānām
Locative	nautane	nautanayoḥ	nautaneṣu

Compound nautana -

Adverb -nautanam -nautanāt