Declension table of ?ātapīya

Masculine	Singular	Dual	Plural
Nominative	ātapīyaḥ	ātapīyau	ātapīyāḥ
Vocative	ātapīya	ātapīyau	ātapīyāḥ
Accusative	ātapīyam	ātapīyau	ātapīyān
Instrumental	ātapīyena	ātapīyābhyām	ātapīyaiḥ ātapīyebhiḥ
Dative	ātapīyāya	ātapīyābhyām	ātapīyebhyaḥ
Ablative	ātapīyāt	ātapīyābhyām	ātapīyebhyaḥ
Genitive	ātapīyasya	ātapīyayoḥ	ātapīyānām
Locative	ātapīye	ātapīyayoḥ	ātapīyeṣu

Compound ātapīya -

Adverb -ātapīyam -ātapīyāt