The word Tresonous is misspelled against Treasonous, an adjective meaning "Treasonable."
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Treasonous has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets tr & sonous is misspelled as 'E'
Wrong Spelling:  tr-e-sonous 
Correct Spelling:  tr-ea-sonous 
Check more misspelled words of Treasonous to spell it correct.