Declension table of ?niḥṣidhvan

Masculine	Singular	Dual	Plural
Nominative	niḥṣidhvā	niḥṣidhvānau	niḥṣidhvānaḥ
Vocative	niḥṣidhvan	niḥṣidhvānau	niḥṣidhvānaḥ
Accusative	niḥṣidhvānam	niḥṣidhvānau	niḥṣidhvanaḥ
Instrumental	niḥṣidhvanā	niḥṣidhvabhyām	niḥṣidhvabhiḥ
Dative	niḥṣidhvane	niḥṣidhvabhyām	niḥṣidhvabhyaḥ
Ablative	niḥṣidhvanaḥ	niḥṣidhvabhyām	niḥṣidhvabhyaḥ
Genitive	niḥṣidhvanaḥ	niḥṣidhvanoḥ	niḥṣidhvanām
Locative	niḥṣidhvani	niḥṣidhvanoḥ	niḥṣidhvasu

Compound niḥṣidhva -

Adverb -niḥṣidhvam