Manswear or Mainswear: How To spell?

The word Manswear is misspelled against Mainswear, a verb meaning "To swear falsely."

Word contains consecutive vowels 'AI' in between alphabets m & nswear is misspelled as 'A'
Wrong Spelling:  m-a-nswear 
Correct Spelling:  m-ai-nswear 
Explore spell check of Mainswear to spell without errors.

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