Decaet or Deceit: How To spell?

The word Decaet is misspelled against Deceit, a noun meaning "An attempt or disposition to deceive or lead into error; any declaration, artifice, or practice, which misleads another, or causes him to believe what is false; a contrivance to entrap; deception; a wily device; fraud."

Word contains consecutive vowels 'EI' in between alphabets dec & t is misspelled as 'AE'
Wrong Spelling:  dec-ae-t 
Correct Spelling:  dec-ei-t 
Explore spell check of Deceit to spell without errors.