Declension table of paitṛka

Neuter	Singular	Dual	Plural
Nominative	paitṛkam	paitṛke	paitṛkāṇi
Vocative	paitṛka	paitṛke	paitṛkāṇi
Accusative	paitṛkam	paitṛke	paitṛkāṇi
Instrumental	paitṛkeṇa	paitṛkābhyām	paitṛkaiḥ
Dative	paitṛkāya	paitṛkābhyām	paitṛkebhyaḥ
Ablative	paitṛkāt	paitṛkābhyām	paitṛkebhyaḥ
Genitive	paitṛkasya	paitṛkayoḥ	paitṛkāṇām
Locative	paitṛke	paitṛkayoḥ	paitṛkeṣu

Compound paitṛka -

Adverb -paitṛkam -paitṛkāt