Overvail or Overveil: How To spell?

The word Overvail is misspelled against Overveil, a verb meaning "To veil or cover."

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