Treitise or Treatise: How To spell?
The word Treitise is misspelled against Treatise, meaning "An elaborate literary composition presenting a subject in all its parts."
Treatise has vowels 'ea' together mispronounced as 'ei'Word contains consecutive vowels 'EA' in between alphabets tr & tise is misspelled as 'EI'
Wrong Spelling:  tr-ei-tise  Correct Spelling:  tr-ea-tise 
Find more wrongly spelled words of Treatise to spell it well.