Declension table of ?vivrata

Masculine	Singular	Dual	Plural
Nominative	vivrataḥ	vivratau	vivratāḥ
Vocative	vivrata	vivratau	vivratāḥ
Accusative	vivratam	vivratau	vivratān
Instrumental	vivratena	vivratābhyām	vivrataiḥ vivratebhiḥ
Dative	vivratāya	vivratābhyām	vivratebhyaḥ
Ablative	vivratāt	vivratābhyām	vivratebhyaḥ
Genitive	vivratasya	vivratayoḥ	vivratānām
Locative	vivrate	vivratayoḥ	vivrateṣu

Compound vivrata -

Adverb -vivratam -vivratāt