Declension table of ?āpātya

Neuter	Singular	Dual	Plural
Nominative	āpātyam	āpātye	āpātyāni
Vocative	āpātya	āpātye	āpātyāni
Accusative	āpātyam	āpātye	āpātyāni
Instrumental	āpātyena	āpātyābhyām	āpātyaiḥ
Dative	āpātyāya	āpātyābhyām	āpātyebhyaḥ
Ablative	āpātyāt	āpātyābhyām	āpātyebhyaḥ
Genitive	āpātyasya	āpātyayoḥ	āpātyānām
Locative	āpātye	āpātyayoḥ	āpātyeṣu

Compound āpātya -

Adverb -āpātyam -āpātyāt