The word Treiding is misspelled against Treading, which is present continuous of "Tread"
-->
Treading has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets tr & ding is misspelled as 'EI'
Wrong Spelling:  tr-ei-ding 
Correct Spelling:  tr-ea-ding 
Find more wrongly spelled words of Treading to spell it well.