Declension table of ?mahasa

Neuter	Singular	Dual	Plural
Nominative	mahasam	mahase	mahasāni
Vocative	mahasa	mahase	mahasāni
Accusative	mahasam	mahase	mahasāni
Instrumental	mahasena	mahasābhyām	mahasaiḥ
Dative	mahasāya	mahasābhyām	mahasebhyaḥ
Ablative	mahasāt	mahasābhyām	mahasebhyaḥ
Genitive	mahasasya	mahasayoḥ	mahasānām
Locative	mahase	mahasayoḥ	mahaseṣu

Compound mahasa -

Adverb -mahasam -mahasāt