Declension table of ?vimahat

Masculine	Singular	Dual	Plural
Nominative	vimahān	vimahāntau	vimahāntaḥ
Vocative	vimahān	vimahāntau	vimahāntaḥ
Accusative	vimahāntam	vimahāntau	vimahataḥ
Instrumental	vimahatā	vimahadbhyām	vimahadbhiḥ
Dative	vimahate	vimahadbhyām	vimahadbhyaḥ
Ablative	vimahataḥ	vimahadbhyām	vimahadbhyaḥ
Genitive	vimahataḥ	vimahatoḥ	vimahatām
Locative	vimahati	vimahatoḥ	vimahatsu

Compound mahat - vimahā -

Adverb -vimahāntam