Declension table of ?autra

Masculine	Singular	Dual	Plural
Nominative	autraḥ	autrau	autrāḥ
Vocative	autra	autrau	autrāḥ
Accusative	autram	autrau	autrān
Instrumental	autreṇa	autrābhyām	autraiḥ autrebhiḥ
Dative	autrāya	autrābhyām	autrebhyaḥ
Ablative	autrāt	autrābhyām	autrebhyaḥ
Genitive	autrasya	autrayoḥ	autrāṇām
Locative	autre	autrayoḥ	autreṣu

Compound autra -

Adverb -autram -autrāt