Waostcoateer or Waistcoateer: How To spell?

The word Waostcoateer is misspelled against Waistcoateer, a noun meaning "One wearing a waistcoat; esp., a woman wearing one uncovered, or thought fit for such a habit; hence, a loose woman; strumpet."

Word contains consecutive vowels 'AI' in between alphabets w & stcoateer is misspelled as 'AO'
Wrong Spelling:  w-ao-stcoateer 
Correct Spelling:  w-ai-stcoateer 
Find more incorrect spellings of Waistcoateer to spell right way.

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