Declension table of ?pitṛvrata

Neuter	Singular	Dual	Plural
Nominative	pitṛvratam	pitṛvrate	pitṛvratāni
Vocative	pitṛvrata	pitṛvrate	pitṛvratāni
Accusative	pitṛvratam	pitṛvrate	pitṛvratāni
Instrumental	pitṛvratena	pitṛvratābhyām	pitṛvrataiḥ
Dative	pitṛvratāya	pitṛvratābhyām	pitṛvratebhyaḥ
Ablative	pitṛvratāt	pitṛvratābhyām	pitṛvratebhyaḥ
Genitive	pitṛvratasya	pitṛvratayoḥ	pitṛvratānām
Locative	pitṛvrate	pitṛvratayoḥ	pitṛvrateṣu

Compound pitṛvrata -

Adverb -pitṛvratam -pitṛvratāt