Declension table of ?parivatsara

Masculine	Singular	Dual	Plural
Nominative	parivatsaraḥ	parivatsarau	parivatsarāḥ
Vocative	parivatsara	parivatsarau	parivatsarāḥ
Accusative	parivatsaram	parivatsarau	parivatsarān
Instrumental	parivatsareṇa	parivatsarābhyām	parivatsaraiḥ parivatsarebhiḥ
Dative	parivatsarāya	parivatsarābhyām	parivatsarebhyaḥ
Ablative	parivatsarāt	parivatsarābhyām	parivatsarebhyaḥ
Genitive	parivatsarasya	parivatsarayoḥ	parivatsarāṇām
Locative	parivatsare	parivatsarayoḥ	parivatsareṣu

Compound parivatsara -

Adverb -parivatsaram -parivatsarāt