Declension table of ?pāthnya

Masculine	Singular	Dual	Plural
Nominative	pāthnyaḥ	pāthnyau	pāthnyāḥ
Vocative	pāthnya	pāthnyau	pāthnyāḥ
Accusative	pāthnyam	pāthnyau	pāthnyān
Instrumental	pāthnyena	pāthnyābhyām	pāthnyaiḥ pāthnyebhiḥ
Dative	pāthnyāya	pāthnyābhyām	pāthnyebhyaḥ
Ablative	pāthnyāt	pāthnyābhyām	pāthnyebhyaḥ
Genitive	pāthnyasya	pāthnyayoḥ	pāthnyānām
Locative	pāthnye	pāthnyayoḥ	pāthnyeṣu

Compound pāthnya -

Adverb -pāthnyam -pāthnyāt