Ret or Reit: How To spell?

The word Ret is misspelled against Reit, a noun meaning "Sedge; seaweed."

Word contains consecutive vowels 'EI' in between alphabets r & t is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  r-e-t 
Correct Spelling:  r-ei-t 
Explore spell check of Reit to spell without errors.