Declension table of ?pratyānayana

Neuter	Singular	Dual	Plural
Nominative	pratyānayanam	pratyānayane	pratyānayanāni
Vocative	pratyānayana	pratyānayane	pratyānayanāni
Accusative	pratyānayanam	pratyānayane	pratyānayanāni
Instrumental	pratyānayanena	pratyānayanābhyām	pratyānayanaiḥ
Dative	pratyānayanāya	pratyānayanābhyām	pratyānayanebhyaḥ
Ablative	pratyānayanāt	pratyānayanābhyām	pratyānayanebhyaḥ
Genitive	pratyānayanasya	pratyānayanayoḥ	pratyānayanānām
Locative	pratyānayane	pratyānayanayoḥ	pratyānayaneṣu

Compound pratyānayana -

Adverb -pratyānayanam -pratyānayanāt