Ascertean or Ascertain: How To spell?

The word Ascertean is misspelled against Ascertain, meaning "get to know"

Word contains consecutive vowels 'AI' in between alphabets ascert & n is misspelled as 'EA'
Wrong Spelling:  ascert-ea-n 
Correct Spelling:  ascert-ai-n 
Explore spell check of Ascertain to spell without errors.

You might be interested to know

Bealer or Bailer?

Blean or Blain?

Capteanry or Captainry?