The word Heirties is misspelled against Hearties, which is plural of "Hearty"
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Hearties has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets h & rties is misspelled as 'EI'
Wrong Spelling:  h-ei-rties 
Correct Spelling:  h-ea-rties 
Find more wrongly spelled words of Hearties to spell it well.