Sdegn or Sdeign: How To spell?

The word Sdegn is misspelled against Sdeign, a verb meaning "To disdain."

Word contains consecutive vowels 'EI' in between alphabets sd & gn is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  sd-e-gn 
Correct Spelling:  sd-ei-gn 
Explore spell check of Sdeign to spell without errors.