Threyded or Threaded: How To spell?

The word Threyded is misspelled against Threaded, which is past tense of "Thread"

Threaded has vowels 'ea' together mispronounced as 'ey'
Word contains consecutive vowels 'EA' in between alphabets thr & ded is misspelled as 'EY'
Wrong Spelling:  thr-ey-ded 
Correct Spelling:  thr-ea-ded 
Explore spell check of Threaded to spell without errors.

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