Declension table of ?māsastoma

Masculine	Singular	Dual	Plural
Nominative	māsastomaḥ	māsastomau	māsastomāḥ
Vocative	māsastoma	māsastomau	māsastomāḥ
Accusative	māsastomam	māsastomau	māsastomān
Instrumental	māsastomena	māsastomābhyām	māsastomaiḥ māsastomebhiḥ
Dative	māsastomāya	māsastomābhyām	māsastomebhyaḥ
Ablative	māsastomāt	māsastomābhyām	māsastomebhyaḥ
Genitive	māsastomasya	māsastomayoḥ	māsastomānām
Locative	māsastome	māsastomayoḥ	māsastomeṣu

Compound māsastoma -

Adverb -māsastomam -māsastomāt