Declension table of ?petva

Masculine	Singular	Dual	Plural
Nominative	petvaḥ	petvau	petvāḥ
Vocative	petva	petvau	petvāḥ
Accusative	petvam	petvau	petvān
Instrumental	petvena	petvābhyām	petvaiḥ petvebhiḥ
Dative	petvāya	petvābhyām	petvebhyaḥ
Ablative	petvāt	petvābhyām	petvebhyaḥ
Genitive	petvasya	petvayoḥ	petvānām
Locative	petve	petvayoḥ	petveṣu

Compound petva -

Adverb -petvam -petvāt