Plyad or Pleiad: How To spell?

The word Plyad is misspelled against Pleiad, a noun meaning "One of the Pleiades."

Word contains consecutive vowels 'EI' in between alphabets pl & ad is misspelled as 'Y'
Wrong Spelling:  pl-y-ad 
Correct Spelling:  pl-ei-ad 
Browse incorrect spellings of Pleiad to spell it good.