Declension table of ?pratyara

Masculine	Singular	Dual	Plural
Nominative	pratyaraḥ	pratyarau	pratyarāḥ
Vocative	pratyara	pratyarau	pratyarāḥ
Accusative	pratyaram	pratyarau	pratyarān
Instrumental	pratyareṇa	pratyarābhyām	pratyaraiḥ pratyarebhiḥ
Dative	pratyarāya	pratyarābhyām	pratyarebhyaḥ
Ablative	pratyarāt	pratyarābhyām	pratyarebhyaḥ
Genitive	pratyarasya	pratyarayoḥ	pratyarāṇām
Locative	pratyare	pratyarayoḥ	pratyareṣu

Compound pratyara -

Adverb -pratyaram -pratyarāt