Declension table of ?niśabda

Neuter	Singular	Dual	Plural
Nominative	niśabdam	niśabde	niśabdāni
Vocative	niśabda	niśabde	niśabdāni
Accusative	niśabdam	niśabde	niśabdāni
Instrumental	niśabdena	niśabdābhyām	niśabdaiḥ
Dative	niśabdāya	niśabdābhyām	niśabdebhyaḥ
Ablative	niśabdāt	niśabdābhyām	niśabdebhyaḥ
Genitive	niśabdasya	niśabdayoḥ	niśabdānām
Locative	niśabde	niśabdayoḥ	niśabdeṣu

Compound niśabda -

Adverb -niśabdam -niśabdāt