Papeyn or Papain: How To spell?

The word Papeyn is misspelled against Papain, a noun meaning "A proteolytic ferment, like trypsin, present in the juice of the green fruit of the papaw (Carica Papaya) of tropical America."

Word contains consecutive vowels 'AI' in between alphabets pap & n is misspelled as 'EY'
Wrong Spelling:  pap-ey-n 
Correct Spelling:  pap-ai-n 
Explore spell check of Papain to spell without errors.

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