Steor or Stair: How To spell?

The word Steor is misspelled against Stair, a noun meaning "A series of steps, as for passing from one story of a house to another; -- commonly used in the plural; but originally used in the singular only."

Word contains consecutive vowels 'AI' in between alphabets st & r is misspelled as 'EO'
Wrong Spelling:  st-eo-r 
Correct Spelling:  st-ai-r 
Find more incorrect spellings of Stair to spell right way.

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