Declension table of ?patvan

Neuter	Singular	Dual	Plural
Nominative	patva	patvnī patvanī	patvāni
Vocative	patvan patva	patvnī patvanī	patvāni
Accusative	patva	patvnī patvanī	patvāni
Instrumental	patvanā	patvabhyām	patvabhiḥ
Dative	patvane	patvabhyām	patvabhyaḥ
Ablative	patvanaḥ	patvabhyām	patvabhyaḥ
Genitive	patvanaḥ	patvanoḥ	patvanām
Locative	patvani	patvanoḥ	patvasu

Compound patva -

Adverb -patva -patvam