Declension table of ?nighnāna

Masculine	Singular	Dual	Plural
Nominative	nighnānaḥ	nighnānau	nighnānāḥ
Vocative	nighnāna	nighnānau	nighnānāḥ
Accusative	nighnānam	nighnānau	nighnānān
Instrumental	nighnānena	nighnānābhyām	nighnānaiḥ nighnānebhiḥ
Dative	nighnānāya	nighnānābhyām	nighnānebhyaḥ
Ablative	nighnānāt	nighnānābhyām	nighnānebhyaḥ
Genitive	nighnānasya	nighnānayoḥ	nighnānānām
Locative	nighnāne	nighnānayoḥ	nighnāneṣu

Compound nighnāna -

Adverb -nighnānam -nighnānāt