Munspring or Mainspring: How To spell?

The word Munspring is misspelled against Mainspring, a noun meaning "The principal or most important spring in a piece of mechanism, especially the moving spring of a watch or clock or the spring in a gunlock which impels the hammer. Hence: The chief or most powerful motive; the efficient cause of action."

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

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