Plutay or Plutei: How To spell?

The word Plutay is misspelled against Plutei, which is plural of "Pluteus"

Word ends with consecutive vowels 'EI' preceded by alphabets 'plut' is misspelled as 'AY'
Wrong Spelling:  plut-ay 
Correct Spelling:  plut-ei 
Check more misspelled words of Plutei to spell it correct.