Archausm or Archaism: How To spell?

The word Archausm is misspelled against Archaism, meaning "Obsolescence."

Word contains consecutive vowels 'AI' in between alphabets arch & sm is misspelled as 'AU'
Wrong Spelling:  arch-au-sm 
Correct Spelling:  arch-ai-sm 
Check more misspelled words of Archaism to spell it correct.

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