Declension table of paitṛka

Masculine	Singular	Dual	Plural
Nominative	paitṛkaḥ	paitṛkau	paitṛkāḥ
Vocative	paitṛka	paitṛkau	paitṛkāḥ
Accusative	paitṛkam	paitṛkau	paitṛkān
Instrumental	paitṛkeṇa	paitṛkābhyām	paitṛkaiḥ paitṛkebhiḥ
Dative	paitṛkāya	paitṛkābhyām	paitṛkebhyaḥ
Ablative	paitṛkāt	paitṛkābhyām	paitṛkebhyaḥ
Genitive	paitṛkasya	paitṛkayoḥ	paitṛkāṇām
Locative	paitṛke	paitṛkayoḥ	paitṛkeṣu

Compound paitṛka -

Adverb -paitṛkam -paitṛkāt