Abost or Abaist: How To spell?

The word Abost is misspelled against Abaist, a preposition meaning "Abashed; confounded; discomfited."

Word contains consecutive vowels 'AI' in between alphabets ab & st is misspelled as 'O'
Wrong Spelling:  ab-o-st 
Correct Spelling:  ab-ai-st 
Find more incorrect spellings of Abaist to spell right way.

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