Overheyrd or Overheard: How To spell?

The word Overheyrd is misspelled against Overheard, which is past tense of "Overhear"

Overheard has vowels 'ea' together mispronounced as 'ey'
Word contains consecutive vowels 'EA' in between alphabets overh & rd is misspelled as 'EY'
Wrong Spelling:  overh-ey-rd 
Correct Spelling:  overh-ea-rd 
Explore spell check of Overheard to spell without errors.

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