Eider or Aider: How To spell?
The word Eider is misspelled against Aider, a noun meaning "One who, or that which, aids."
Word begins with consecutive vowels 'AI' followed by alphabets 'der' is misspelled as 'EI'Wrong Spelling:  ei-der  Correct Spelling:  ai-der 
Find more wrongly spelled words of Aider to spell it well.