Dreun or Drein: How To spell?

The word Dreun is misspelled against Drein, a verb meaning "To drain."

Word contains consecutive vowels 'EI' in between alphabets dr & n is misspelled as 'EU'
Wrong Spelling:  dr-eu-n 
Correct Spelling:  dr-ei-n 
Check more misspelled words of Drein to spell it correct.