Declension table of ?parpa

Neuter	Singular	Dual	Plural
Nominative	parpam	parpe	parpāṇi
Vocative	parpa	parpe	parpāṇi
Accusative	parpam	parpe	parpāṇi
Instrumental	parpeṇa	parpābhyām	parpaiḥ
Dative	parpāya	parpābhyām	parpebhyaḥ
Ablative	parpāt	parpābhyām	parpebhyaḥ
Genitive	parpasya	parpayoḥ	parpāṇām
Locative	parpe	parpayoḥ	parpeṣu

Compound parpa -

Adverb -parpam -parpāt