Declension table of ?āpatya

Masculine	Singular	Dual	Plural
Nominative	āpatyaḥ	āpatyau	āpatyāḥ
Vocative	āpatya	āpatyau	āpatyāḥ
Accusative	āpatyam	āpatyau	āpatyān
Instrumental	āpatyena	āpatyābhyām	āpatyaiḥ āpatyebhiḥ
Dative	āpatyāya	āpatyābhyām	āpatyebhyaḥ
Ablative	āpatyāt	āpatyābhyām	āpatyebhyaḥ
Genitive	āpatyasya	āpatyayoḥ	āpatyānām
Locative	āpatye	āpatyayoḥ	āpatyeṣu

Compound āpatya -

Adverb -āpatyam -āpatyāt