Declension table of ?āptastoma

Masculine	Singular	Dual	Plural
Nominative	āptastomaḥ	āptastomau	āptastomāḥ
Vocative	āptastoma	āptastomau	āptastomāḥ
Accusative	āptastomam	āptastomau	āptastomān
Instrumental	āptastomena	āptastomābhyām	āptastomaiḥ āptastomebhiḥ
Dative	āptastomāya	āptastomābhyām	āptastomebhyaḥ
Ablative	āptastomāt	āptastomābhyām	āptastomebhyaḥ
Genitive	āptastomasya	āptastomayoḥ	āptastomānām
Locative	āptastome	āptastomayoḥ	āptastomeṣu

Compound āptastoma -

Adverb -āptastomam -āptastomāt