Gryth or Greith: How To spell?

The word Gryth is misspelled against Greith, a verb meaning "To make ready; -- often used reflexively."

Word contains consecutive vowels 'EI' in between alphabets gr & th is misspelled as 'Y'
Wrong Spelling:  gr-y-th 
Correct Spelling:  gr-ei-th 
Navigate all incorrect spellings of Greith to spell it right.