Declension table of ?pitṛghna

Masculine	Singular	Dual	Plural
Nominative	pitṛghnaḥ	pitṛghnau	pitṛghnāḥ
Vocative	pitṛghna	pitṛghnau	pitṛghnāḥ
Accusative	pitṛghnam	pitṛghnau	pitṛghnān
Instrumental	pitṛghnena	pitṛghnābhyām	pitṛghnaiḥ pitṛghnebhiḥ
Dative	pitṛghnāya	pitṛghnābhyām	pitṛghnebhyaḥ
Ablative	pitṛghnāt	pitṛghnābhyām	pitṛghnebhyaḥ
Genitive	pitṛghnasya	pitṛghnayoḥ	pitṛghnānām
Locative	pitṛghne	pitṛghnayoḥ	pitṛghneṣu

Compound pitṛghna -

Adverb -pitṛghnam -pitṛghnāt