Declension table of ?puṇyarātra

Masculine	Singular	Dual	Plural
Nominative	puṇyarātraḥ	puṇyarātrau	puṇyarātrāḥ
Vocative	puṇyarātra	puṇyarātrau	puṇyarātrāḥ
Accusative	puṇyarātram	puṇyarātrau	puṇyarātrān
Instrumental	puṇyarātreṇa	puṇyarātrābhyām	puṇyarātraiḥ puṇyarātrebhiḥ
Dative	puṇyarātrāya	puṇyarātrābhyām	puṇyarātrebhyaḥ
Ablative	puṇyarātrāt	puṇyarātrābhyām	puṇyarātrebhyaḥ
Genitive	puṇyarātrasya	puṇyarātrayoḥ	puṇyarātrāṇām
Locative	puṇyarātre	puṇyarātrayoḥ	puṇyarātreṣu

Compound puṇyarātra -

Adverb -puṇyarātram -puṇyarātrāt