Archiasm or Archaism: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets arch & sm is misspelled as 'IA'
Wrong Spelling:  arch-ia-sm 
Correct Spelling:  arch-ai-sm 
Find more wrongly spelled words of Archaism to spell it well.

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