Heyrtstring or Heartstring: How To spell?
The word Heyrtstring is misspelled against Heartstring, a noun meaning "A nerve or tendon, supposed to brace and sustain the heart."
Heartstring has vowels 'ea' together mispronounced as 'ey'Word contains consecutive vowels 'EA' in between alphabets h & rtstring is misspelled as 'EY'
Wrong Spelling:  h-ey-rtstring  Correct Spelling:  h-ea-rtstring 
Find more wrongly spelled words of Heartstring to spell it well.