Declension table of ?āpātya

Masculine	Singular	Dual	Plural
Nominative	āpātyaḥ	āpātyau	āpātyāḥ
Vocative	āpātya	āpātyau	āpātyāḥ
Accusative	āpātyam	āpātyau	āpātyān
Instrumental	āpātyena	āpātyābhyām	āpātyaiḥ āpātyebhiḥ
Dative	āpātyāya	āpātyābhyām	āpātyebhyaḥ
Ablative	āpātyāt	āpātyābhyām	āpātyebhyaḥ
Genitive	āpātyasya	āpātyayoḥ	āpātyānām
Locative	āpātye	āpātyayoḥ	āpātyeṣu

Compound āpātya -

Adverb -āpātyam -āpātyāt