Declension table of ?peru

Neuter	Singular	Dual	Plural
Nominative	peru	peruṇī	perūṇi
Vocative	peru	peruṇī	perūṇi
Accusative	peru	peruṇī	perūṇi
Instrumental	peruṇā	perubhyām	perubhiḥ
Dative	peruṇe	perubhyām	perubhyaḥ
Ablative	peruṇaḥ	perubhyām	perubhyaḥ
Genitive	peruṇaḥ	peruṇoḥ	perūṇām
Locative	peruṇi	peruṇoḥ	peruṣu

Compound peru -

Adverb -peru