Overfraighted or Overfreighted: How To spell?

The word Overfraighted is misspelled against Overfreighted, which is past tense of "Overfreight"

Word contains consecutive vowels 'EI' in between alphabets overfr & ghted is misspelled as 'AI'
Wrong Spelling:  overfr-ai-ghted 
Correct Spelling:  overfr-ei-ghted 
Find more wrongly spelled words of Overfreighted to spell it well.