Overpud or Overpaid: How To spell?

The word Overpud is misspelled against Overpaid, which is past tense of "Overpay"

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

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