Declension table of ?pitṛvitta

Neuter	Singular	Dual	Plural
Nominative	pitṛvittam	pitṛvitte	pitṛvittāni
Vocative	pitṛvitta	pitṛvitte	pitṛvittāni
Accusative	pitṛvittam	pitṛvitte	pitṛvittāni
Instrumental	pitṛvittena	pitṛvittābhyām	pitṛvittaiḥ
Dative	pitṛvittāya	pitṛvittābhyām	pitṛvittebhyaḥ
Ablative	pitṛvittāt	pitṛvittābhyām	pitṛvittebhyaḥ
Genitive	pitṛvittasya	pitṛvittayoḥ	pitṛvittānām
Locative	pitṛvitte	pitṛvittayoḥ	pitṛvitteṣu

Compound pitṛvitta -

Adverb -pitṛvittam -pitṛvittāt