Plyades or Pleiades: How To spell?

The word Plyades is misspelled against Pleiades, a noun meaning "A group of small stars in the neck of the constellation Taurus."

Word contains consecutive vowels 'EI' in between alphabets pl & ades is misspelled as 'Y'
Wrong Spelling:  pl-y-ades 
Correct Spelling:  pl-ei-ades 
Explore spell check of Pleiades to spell without errors.