Dissyizing or Disseizing: How To spell?

The word Dissyizing is misspelled against Disseizing, which is present continuous of "Disseize"

Word contains consecutive vowels 'EI' in between alphabets diss & zing is misspelled as 'YI'
Wrong Spelling:  diss-yi-zing 
Correct Spelling:  diss-ei-zing 
Find more wrongly spelled words of Disseizing to spell it well.