Declension table of ?naṣṭāgni

Masculine	Singular	Dual	Plural
Nominative	naṣṭāgniḥ	naṣṭāgnī	naṣṭāgnayaḥ
Vocative	naṣṭāgne	naṣṭāgnī	naṣṭāgnayaḥ
Accusative	naṣṭāgnim	naṣṭāgnī	naṣṭāgnīn
Instrumental	naṣṭāgninā	naṣṭāgnibhyām	naṣṭāgnibhiḥ
Dative	naṣṭāgnaye	naṣṭāgnibhyām	naṣṭāgnibhyaḥ
Ablative	naṣṭāgneḥ	naṣṭāgnibhyām	naṣṭāgnibhyaḥ
Genitive	naṣṭāgneḥ	naṣṭāgnyoḥ	naṣṭāgnīnām
Locative	naṣṭāgnau	naṣṭāgnyoḥ	naṣṭāgniṣu

Compound naṣṭāgni -

Adverb -naṣṭāgni