Declension table of ?vāhna

Masculine	Singular	Dual	Plural
Nominative	vāhnaḥ	vāhnau	vāhnāḥ
Vocative	vāhna	vāhnau	vāhnāḥ
Accusative	vāhnam	vāhnau	vāhnān
Instrumental	vāhnena	vāhnābhyām	vāhnaiḥ vāhnebhiḥ
Dative	vāhnāya	vāhnābhyām	vāhnebhyaḥ
Ablative	vāhnāt	vāhnābhyām	vāhnebhyaḥ
Genitive	vāhnasya	vāhnayoḥ	vāhnānām
Locative	vāhne	vāhnayoḥ	vāhneṣu

Compound vāhna -

Adverb -vāhnam -vāhnāt