Declension table of ?pratira

Neuter	Singular	Dual	Plural
Nominative	pratiram	pratire	pratirāṇi
Vocative	pratira	pratire	pratirāṇi
Accusative	pratiram	pratire	pratirāṇi
Instrumental	pratireṇa	pratirābhyām	pratiraiḥ
Dative	pratirāya	pratirābhyām	pratirebhyaḥ
Ablative	pratirāt	pratirābhyām	pratirebhyaḥ
Genitive	pratirasya	pratirayoḥ	pratirāṇām
Locative	pratire	pratirayoḥ	pratireṣu

Compound pratira -

Adverb -pratiram -pratirāt