Declension table of ?śaṃstavya

Neuter	Singular	Dual	Plural
Nominative	śaṃstavyam	śaṃstavye	śaṃstavyāni
Vocative	śaṃstavya	śaṃstavye	śaṃstavyāni
Accusative	śaṃstavyam	śaṃstavye	śaṃstavyāni
Instrumental	śaṃstavyena	śaṃstavyābhyām	śaṃstavyaiḥ
Dative	śaṃstavyāya	śaṃstavyābhyām	śaṃstavyebhyaḥ
Ablative	śaṃstavyāt	śaṃstavyābhyām	śaṃstavyebhyaḥ
Genitive	śaṃstavyasya	śaṃstavyayoḥ	śaṃstavyānām
Locative	śaṃstavye	śaṃstavyayoḥ	śaṃstavyeṣu

Compound śaṃstavya -

Adverb -śaṃstavyam -śaṃstavyāt