Lardacaun or Lardacein: How To spell?

The word Lardacaun is misspelled against Lardacein, a noun meaning "A peculiar amyloid substance, colored blue by iodine and sulphuric acid, occurring mainly as an abnormal infiltration into the spleen, liver, etc."

Word contains consecutive vowels 'EI' in between alphabets lardac & n is misspelled as 'AU'
Wrong Spelling:  lardac-au-n 
Correct Spelling:  lardac-ei-n 
Check more misspelled words of Lardacein to spell it correct.