Sweethert or Sweetheart: How To spell?

The word Sweethert is misspelled against Sweetheart, a noun meaning "A lover of mistress."

Sweetheart has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets sweeth & rt is misspelled as 'E'
Wrong Spelling:  sweeth-e-rt 
Correct Spelling:  sweeth-ea-rt 
Explore spell check of Sweetheart to spell without errors.

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