Declension table of ?apatāna

Masculine	Singular	Dual	Plural
Nominative	apatānaḥ	apatānau	apatānāḥ
Vocative	apatāna	apatānau	apatānāḥ
Accusative	apatānam	apatānau	apatānān
Instrumental	apatānena	apatānābhyām	apatānaiḥ apatānebhiḥ
Dative	apatānāya	apatānābhyām	apatānebhyaḥ
Ablative	apatānāt	apatānābhyām	apatānebhyaḥ
Genitive	apatānasya	apatānayoḥ	apatānānām
Locative	apatāne	apatānayoḥ	apatāneṣu

Compound apatāna -

Adverb -apatānam -apatānāt