Meneuon or Menaion: How To spell?

The word Meneuon is misspelled against Menaion, a noun meaning "A work of twelve volumes, each containing the offices in the Greek Church for a month; also, each volume of the same."

Word contains consecutive vowels 'AI' in between alphabets men & on is misspelled as 'EU'
Wrong Spelling:  men-eu-on 
Correct Spelling:  men-ai-on 
Check more misspelled words of Menaion to spell it correct.

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