Decayvableness or Deceivableness: How To spell?

The word Decayvableness is misspelled against Deceivableness, a noun meaning "Capability of deceiving."

Word contains consecutive vowels 'EI' in between alphabets dec & vableness is misspelled as 'AY'
Wrong Spelling:  dec-ay-vableness 
Correct Spelling:  dec-ei-vableness 
Explore spell check of Deceivableness to spell without errors.