Abstener or Abstainer: How To spell?

The word Abstener is misspelled against Abstainer, a noun meaning "One who abstains; esp., one who abstains from the use of intoxicating liquors."

Word contains consecutive vowels 'AI' in between alphabets abst & ner is misspelled as 'E'
Wrong Spelling:  abst-e-ner 
Correct Spelling:  abst-ai-ner 
Explore spell check of Abstainer to spell without errors.

You might be interested to know

Arese or Araise?

Aumel or Aumail?

Bedcher or Bedchair?