Cadmen or Cadmean: How To spell?

The word Cadmen is misspelled against Cadmean, an adjective meaning "pertaining to Cadmus, a fabulous prince Thebes, who was said to have introduced into Greece the sixteen simple letters the alphabet -- /, /, /, /, /, /, /, /, /, /, /, /, /, /, /, /. These are called Cadmean letters."

Cadmean has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets cadm & n is misspelled as 'E'
Wrong Spelling:  cadm-e-n 
Correct Spelling:  cadm-ea-n 
Explore spell check of Cadmean to spell without errors.

You might be interested to know

Chet or Cheat?

Coccygel or Coccygeal?

Counterpled or Counterplead?