Declension table of ?vidarvya

Neuter	Singular	Dual	Plural
Nominative	vidarvyam	vidarvye	vidarvyāṇi
Vocative	vidarvya	vidarvye	vidarvyāṇi
Accusative	vidarvyam	vidarvye	vidarvyāṇi
Instrumental	vidarvyeṇa	vidarvyābhyām	vidarvyaiḥ
Dative	vidarvyāya	vidarvyābhyām	vidarvyebhyaḥ
Ablative	vidarvyāt	vidarvyābhyām	vidarvyebhyaḥ
Genitive	vidarvyasya	vidarvyayoḥ	vidarvyāṇām
Locative	vidarvye	vidarvyayoḥ	vidarvyeṣu

Compound vidarvya -

Adverb -vidarvyam -vidarvyāt