Declension table of ?paitrya

Neuter	Singular	Dual	Plural
Nominative	paitryam	paitrye	paitryāṇi
Vocative	paitrya	paitrye	paitryāṇi
Accusative	paitryam	paitrye	paitryāṇi
Instrumental	paitryeṇa	paitryābhyām	paitryaiḥ
Dative	paitryāya	paitryābhyām	paitryebhyaḥ
Ablative	paitryāt	paitryābhyām	paitryebhyaḥ
Genitive	paitryasya	paitryayoḥ	paitryāṇām
Locative	paitrye	paitryayoḥ	paitryeṣu

Compound paitrya -

Adverb -paitryam -paitryāt