The word Treity is misspelled against Treaty, a noun meaning "A proposal tending to an agreement."
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Treaty has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets tr & ty is misspelled as 'EI'
Wrong Spelling:  tr-ei-ty 
Correct Spelling:  tr-ea-ty 
Find more wrongly spelled words of Treaty to spell it well.