Declension table of ?pātalya

Neuter	Singular	Dual	Plural
Nominative	pātalyam	pātalye	pātalyāni
Vocative	pātalya	pātalye	pātalyāni
Accusative	pātalyam	pātalye	pātalyāni
Instrumental	pātalyena	pātalyābhyām	pātalyaiḥ
Dative	pātalyāya	pātalyābhyām	pātalyebhyaḥ
Ablative	pātalyāt	pātalyābhyām	pātalyebhyaḥ
Genitive	pātalyasya	pātalyayoḥ	pātalyānām
Locative	pātalye	pātalyayoḥ	pātalyeṣu

Compound pātalya -

Adverb -pātalyam -pātalyāt