Declension table of ?nighnamāna

Neuter	Singular	Dual	Plural
Nominative	nighnamānam	nighnamāne	nighnamānāni
Vocative	nighnamāna	nighnamāne	nighnamānāni
Accusative	nighnamānam	nighnamāne	nighnamānāni
Instrumental	nighnamānena	nighnamānābhyām	nighnamānaiḥ
Dative	nighnamānāya	nighnamānābhyām	nighnamānebhyaḥ
Ablative	nighnamānāt	nighnamānābhyām	nighnamānebhyaḥ
Genitive	nighnamānasya	nighnamānayoḥ	nighnamānānām
Locative	nighnamāne	nighnamānayoḥ	nighnamāneṣu

Compound nighnamāna -

Adverb -nighnamānam -nighnamānāt