Declension table of ?peṇāna

Neuter	Singular	Dual	Plural
Nominative	peṇānam	peṇāne	peṇānāni
Vocative	peṇāna	peṇāne	peṇānāni
Accusative	peṇānam	peṇāne	peṇānāni
Instrumental	peṇānena	peṇānābhyām	peṇānaiḥ
Dative	peṇānāya	peṇānābhyām	peṇānebhyaḥ
Ablative	peṇānāt	peṇānābhyām	peṇānebhyaḥ
Genitive	peṇānasya	peṇānayoḥ	peṇānānām
Locative	peṇāne	peṇānayoḥ	peṇāneṣu

Compound peṇāna -

Adverb -peṇānam -peṇānāt