Treider or Treader: How To spell?

The word Treider is misspelled against Treader, a noun meaning "One who treads."

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

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