Declension table of ?dvyavara

Neuter	Singular	Dual	Plural
Nominative	dvyavaram	dvyavare	dvyavarāṇi
Vocative	dvyavara	dvyavare	dvyavarāṇi
Accusative	dvyavaram	dvyavare	dvyavarāṇi
Instrumental	dvyavareṇa	dvyavarābhyām	dvyavaraiḥ
Dative	dvyavarāya	dvyavarābhyām	dvyavarebhyaḥ
Ablative	dvyavarāt	dvyavarābhyām	dvyavarebhyaḥ
Genitive	dvyavarasya	dvyavarayoḥ	dvyavarāṇām
Locative	dvyavare	dvyavarayoḥ	dvyavareṣu

Compound dvyavara -

Adverb -dvyavaram -dvyavarāt