Heidache or Headache: How To spell?

The word Heidache is misspelled against Headache, a noun meaning "Pain in the head; cephalalgia."

Headache has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets h & dache is misspelled as 'EI'
Wrong Spelling:  h-ei-dache 
Correct Spelling:  h-ea-dache 
Find more wrongly spelled words of Headache to spell it well.

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