Declension table of ?yopana

Neuter	Singular	Dual	Plural
Nominative	yopanam	yopane	yopanāni
Vocative	yopana	yopane	yopanāni
Accusative	yopanam	yopane	yopanāni
Instrumental	yopanena	yopanābhyām	yopanaiḥ
Dative	yopanāya	yopanābhyām	yopanebhyaḥ
Ablative	yopanāt	yopanābhyām	yopanebhyaḥ
Genitive	yopanasya	yopanayoḥ	yopanānām
Locative	yopane	yopanayoḥ	yopaneṣu

Compound yopana -

Adverb -yopanam -yopanāt