Declension table of ?ākāśānantyāyatana

Masculine	Singular	Dual	Plural
Nominative	ākāśānantyāyatanaḥ	ākāśānantyāyatanau	ākāśānantyāyatanāḥ
Vocative	ākāśānantyāyatana	ākāśānantyāyatanau	ākāśānantyāyatanāḥ
Accusative	ākāśānantyāyatanam	ākāśānantyāyatanau	ākāśānantyāyatanān
Instrumental	ākāśānantyāyatanena	ākāśānantyāyatanābhyām	ākāśānantyāyatanaiḥ ākāśānantyāyatanebhiḥ
Dative	ākāśānantyāyatanāya	ākāśānantyāyatanābhyām	ākāśānantyāyatanebhyaḥ
Ablative	ākāśānantyāyatanāt	ākāśānantyāyatanābhyām	ākāśānantyāyatanebhyaḥ
Genitive	ākāśānantyāyatanasya	ākāśānantyāyatanayoḥ	ākāśānantyāyatanānām
Locative	ākāśānantyāyatane	ākāśānantyāyatanayoḥ	ākāśānantyāyataneṣu

Compound ākāśānantyāyatana -

Adverb -ākāśānantyāyatanam -ākāśānantyāyatanāt