The word Heirkened is misspelled against Hearkened, which is past tense of "Hearken"
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Hearkened has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets h & rkened is misspelled as 'EI'
Wrong Spelling:  h-ei-rkened 
Correct Spelling:  h-ea-rkened 
Find more wrongly spelled words of Hearkened to spell it well.