Declension table of ?devasva

Neuter	Singular	Dual	Plural
Nominative	devasvam	devasve	devasvāni
Vocative	devasva	devasve	devasvāni
Accusative	devasvam	devasve	devasvāni
Instrumental	devasvena	devasvābhyām	devasvaiḥ
Dative	devasvāya	devasvābhyām	devasvebhyaḥ
Ablative	devasvāt	devasvābhyām	devasvebhyaḥ
Genitive	devasvasya	devasvayoḥ	devasvānām
Locative	devasve	devasvayoḥ	devasveṣu

Compound devasva -

Adverb -devasvam -devasvāt