Declension table of ?oṇamāna

Masculine	Singular	Dual	Plural
Nominative	oṇamānaḥ	oṇamānau	oṇamānāḥ
Vocative	oṇamāna	oṇamānau	oṇamānāḥ
Accusative	oṇamānam	oṇamānau	oṇamānān
Instrumental	oṇamānena	oṇamānābhyām	oṇamānaiḥ oṇamānebhiḥ
Dative	oṇamānāya	oṇamānābhyām	oṇamānebhyaḥ
Ablative	oṇamānāt	oṇamānābhyām	oṇamānebhyaḥ
Genitive	oṇamānasya	oṇamānayoḥ	oṇamānānām
Locative	oṇamāne	oṇamānayoḥ	oṇamāneṣu

Compound oṇamāna -

Adverb -oṇamānam -oṇamānāt