Declension table of ?niṣṣidh

Feminine	Singular	Dual	Plural
Nominative	niṣṣit	niṣṣidhau	niṣṣidhaḥ
Vocative	niṣṣit	niṣṣidhau	niṣṣidhaḥ
Accusative	niṣṣidham	niṣṣidhau	niṣṣidhaḥ
Instrumental	niṣṣidhā	niṣṣidbhyām	niṣṣidbhiḥ
Dative	niṣṣidhe	niṣṣidbhyām	niṣṣidbhyaḥ
Ablative	niṣṣidhaḥ	niṣṣidbhyām	niṣṣidbhyaḥ
Genitive	niṣṣidhaḥ	niṣṣidhoḥ	niṣṣidhām
Locative	niṣṣidhi	niṣṣidhoḥ	niṣṣitsu

Compound niṣṣit -

Adverb -niṣṣit