Declension table of ?śaṅkavya

Neuter	Singular	Dual	Plural
Nominative	śaṅkavyam	śaṅkavye	śaṅkavyāni
Vocative	śaṅkavya	śaṅkavye	śaṅkavyāni
Accusative	śaṅkavyam	śaṅkavye	śaṅkavyāni
Instrumental	śaṅkavyena	śaṅkavyābhyām	śaṅkavyaiḥ
Dative	śaṅkavyāya	śaṅkavyābhyām	śaṅkavyebhyaḥ
Ablative	śaṅkavyāt	śaṅkavyābhyām	śaṅkavyebhyaḥ
Genitive	śaṅkavyasya	śaṅkavyayoḥ	śaṅkavyānām
Locative	śaṅkavye	śaṅkavyayoḥ	śaṅkavyeṣu

Compound śaṅkavya -

Adverb -śaṅkavyam -śaṅkavyāt