Declension table of ?āpatya

Neuter	Singular	Dual	Plural
Nominative	āpatyam	āpatye	āpatyāni
Vocative	āpatya	āpatye	āpatyāni
Accusative	āpatyam	āpatye	āpatyāni
Instrumental	āpatyena	āpatyābhyām	āpatyaiḥ
Dative	āpatyāya	āpatyābhyām	āpatyebhyaḥ
Ablative	āpatyāt	āpatyābhyām	āpatyebhyaḥ
Genitive	āpatyasya	āpatyayoḥ	āpatyānām
Locative	āpatye	āpatyayoḥ	āpatyeṣu

Compound āpatya -

Adverb -āpatyam -āpatyāt