Eyghthly or Eighthly: How To spell?

The word Eyghthly is misspelled against Eighthly, an adverb meaning "As the eighth in order."

Word begins with consecutive vowels 'EI' followed by alphabets 'ghthly' is misspelled as 'EY'
Wrong Spelling:  ey-ghthly 
Correct Spelling:  ei-ghthly 
Navigate all incorrect spellings of Eighthly to spell it right.