The word Lethering is misspelled against Leathering, which is present continuous of "Leather"
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Leathering has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets l & thering is misspelled as 'E'
Wrong Spelling:  l-e-thering 
Correct Spelling:  l-ea-thering 
Find more wrongly spelled words of Leathering to spell it well.