Eyghth or Eighth: How To spell?

The word Eyghth is misspelled against Eighth, a noun meaning "The interval of an octave."

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