Greeth or Greith: How To spell?

The word Greeth 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 'EE'
Wrong Spelling:  gr-ee-th 
Correct Spelling:  gr-ei-th 
Explore spell check of Greith to spell without errors.