Certyn or Certain: How To spell?

The word Certyn is misspelled against Certain, a noun meaning "A certain number or quantity."

Word contains consecutive vowels 'AI' in between alphabets cert & n is misspelled as 'Y'
Wrong Spelling:  cert-y-n 
Correct Spelling:  cert-ai-n 
Explore spell check of Certain to spell without errors.

You might be interested to know

Complynant or Complainant?

Curtyler or Curtailer?

Deltyc or Deltaic?