Hairtwood or Heartwood: How To spell?

The word Hairtwood is misspelled against Heartwood, a noun meaning "The hard, central part of the trunk of a tree, consisting of the old and matured wood, and usually differing in color from the outer layers. It is technically known as duramen, and distinguished from the softer sapwood or alburnum."

Heartwood has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets h & rtwood is misspelled as 'AI'
Wrong Spelling:  h-ai-rtwood 
Correct Spelling:  h-ea-rtwood 
Find more incorrect spellings of Heartwood to spell right way.

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