Untwen or Untwain: How To spell?

The word Untwen is misspelled against Untwain, a verb meaning "To rend in twain; to tear in two."

Word contains consecutive vowels 'AI' in between alphabets untw & n is misspelled as 'E'
Wrong Spelling:  untw-e-n 
Correct Spelling:  untw-ai-n 
Explore spell check of Untwain to spell without errors.

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