Prochaen or Prochein: How To spell?

The word Prochaen is misspelled against Prochein, an adjective meaning "Next; nearest."

Word contains consecutive vowels 'EI' in between alphabets proch & n is misspelled as 'AE'
Wrong Spelling:  proch-ae-n 
Correct Spelling:  proch-ei-n 
Find more incorrect spellings of Prochein to spell right way.