Archysm or Archaism: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets arch & sm is misspelled as 'Y'
Wrong Spelling:  arch-y-sm 
Correct Spelling:  arch-ai-sm 
Navigate all incorrect spellings of Archaism to spell it right.

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