The word Reredemun is misspelled against Reredemain, a noun meaning "A backward stroke."
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Word contains consecutive vowels 'AI' in between alphabets reredem & n is misspelled as 'U'
Wrong Spelling:  reredem-u-n 
Correct Spelling:  reredem-ai-n 
Check more misspelled words of Reredemain to spell it correct.