Declension table of ?sadūrva

Neuter	Singular	Dual	Plural
Nominative	sadūrvam	sadūrve	sadūrvāṇi
Vocative	sadūrva	sadūrve	sadūrvāṇi
Accusative	sadūrvam	sadūrve	sadūrvāṇi
Instrumental	sadūrveṇa	sadūrvābhyām	sadūrvaiḥ
Dative	sadūrvāya	sadūrvābhyām	sadūrvebhyaḥ
Ablative	sadūrvāt	sadūrvābhyām	sadūrvebhyaḥ
Genitive	sadūrvasya	sadūrvayoḥ	sadūrvāṇām
Locative	sadūrve	sadūrvayoḥ	sadūrveṣu

Compound sadūrva -

Adverb -sadūrvam -sadūrvāt