Declension table of ?āpnavāna

Masculine	Singular	Dual	Plural
Nominative	āpnavānaḥ	āpnavānau	āpnavānāḥ
Vocative	āpnavāna	āpnavānau	āpnavānāḥ
Accusative	āpnavānam	āpnavānau	āpnavānān
Instrumental	āpnavānena	āpnavānābhyām	āpnavānaiḥ āpnavānebhiḥ
Dative	āpnavānāya	āpnavānābhyām	āpnavānebhyaḥ
Ablative	āpnavānāt	āpnavānābhyām	āpnavānebhyaḥ
Genitive	āpnavānasya	āpnavānayoḥ	āpnavānānām
Locative	āpnavāne	āpnavānayoḥ	āpnavāneṣu

Compound āpnavāna -

Adverb -āpnavānam -āpnavānāt