Vendemiure or Vendemiaire: How To spell?

The word Vendemiure is misspelled against Vendemiaire, a noun meaning "The first month of the French republican calendar, dating from September 22, 1792."

Word contains consecutive vowels 'AI' in between alphabets vendemi & re is misspelled as 'U'
Wrong Spelling:  vendemi-u-re 
Correct Spelling:  vendemi-ai-re 
Check more misspelled words of Vendemiaire to spell it correct.

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