Synfoin or Sainfoin: How To spell?

The word Synfoin is misspelled against Sainfoin, a noun meaning "A kind of tick trefoil (Desmodium Canadense)."

Word contains consecutive vowels 'AI' in between alphabets s & nfoin is misspelled as 'Y'
Wrong Spelling:  s-y-nfoin 
Correct Spelling:  s-ai-nfoin 
Find more incorrect spellings of Sainfoin to spell right way.

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