Declension table of ?dviyajatva

Neuter	Singular	Dual	Plural
Nominative	dviyajatvam	dviyajatve	dviyajatvāni
Vocative	dviyajatva	dviyajatve	dviyajatvāni
Accusative	dviyajatvam	dviyajatve	dviyajatvāni
Instrumental	dviyajatvena	dviyajatvābhyām	dviyajatvaiḥ
Dative	dviyajatvāya	dviyajatvābhyām	dviyajatvebhyaḥ
Ablative	dviyajatvāt	dviyajatvābhyām	dviyajatvebhyaḥ
Genitive	dviyajatvasya	dviyajatvayoḥ	dviyajatvānām
Locative	dviyajatve	dviyajatvayoḥ	dviyajatveṣu

Compound dviyajatva -

Adverb -dviyajatvam -dviyajatvāt