Menten or Maintain: How To spell?

The word Menten is misspelled against Maintain, a verb meaning "To affirm; to support or defend by argument."

Word contains consecutive vowels 'AI' twice is misspelled as 'E'
Wrong Spelling:  m-e-nt-e-n 
Correct Spelling:  m-ai-nt-ai-n 
Explore spell check of Maintain to spell without errors.

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