Declension table of ?vanavāsya

Neuter	Singular	Dual	Plural
Nominative	vanavāsyam	vanavāsye	vanavāsyāni
Vocative	vanavāsya	vanavāsye	vanavāsyāni
Accusative	vanavāsyam	vanavāsye	vanavāsyāni
Instrumental	vanavāsyena	vanavāsyābhyām	vanavāsyaiḥ
Dative	vanavāsyāya	vanavāsyābhyām	vanavāsyebhyaḥ
Ablative	vanavāsyāt	vanavāsyābhyām	vanavāsyebhyaḥ
Genitive	vanavāsyasya	vanavāsyayoḥ	vanavāsyānām
Locative	vanavāsye	vanavāsyayoḥ	vanavāsyeṣu

Compound vanavāsya -

Adverb -vanavāsyam -vanavāsyāt