Declension table of ?rasāntara

Neuter	Singular	Dual	Plural
Nominative	rasāntaram	rasāntare	rasāntarāṇi
Vocative	rasāntara	rasāntare	rasāntarāṇi
Accusative	rasāntaram	rasāntare	rasāntarāṇi
Instrumental	rasāntareṇa	rasāntarābhyām	rasāntaraiḥ
Dative	rasāntarāya	rasāntarābhyām	rasāntarebhyaḥ
Ablative	rasāntarāt	rasāntarābhyām	rasāntarebhyaḥ
Genitive	rasāntarasya	rasāntarayoḥ	rasāntarāṇām
Locative	rasāntare	rasāntarayoḥ	rasāntareṣu

Compound rasāntara -

Adverb -rasāntaram -rasāntarāt