Declension table of ?ātapīya

Neuter	Singular	Dual	Plural
Nominative	ātapīyam	ātapīye	ātapīyāni
Vocative	ātapīya	ātapīye	ātapīyāni
Accusative	ātapīyam	ātapīye	ātapīyāni
Instrumental	ātapīyena	ātapīyābhyām	ātapīyaiḥ
Dative	ātapīyāya	ātapīyābhyām	ātapīyebhyaḥ
Ablative	ātapīyāt	ātapīyābhyām	ātapīyebhyaḥ
Genitive	ātapīyasya	ātapīyayoḥ	ātapīyānām
Locative	ātapīye	ātapīyayoḥ	ātapīyeṣu

Compound ātapīya -

Adverb -ātapīyam -ātapīyāt