Fearnavght or Fearnaught: How To spell?

The word Fearnavght is misspelled against Fearnaught, a noun meaning "A fearless person."

Word contains consecutive vowels 'AU' in between alphabets fearn & ght is misspelled as 'AV'
Wrong Spelling:  fearn-av-ght 
Correct Spelling:  fearn-au-ght 
Explore spell check of Fearnaught to spell without errors.

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