Chaldeusm or Chaldaism: How To spell?

The word Chaldeusm is misspelled against Chaldaism, a noun meaning "An idiom or peculiarity in the Chaldee dialect."

Word contains consecutive vowels 'AI' in between alphabets chald & sm is misspelled as 'EU'
Wrong Spelling:  chald-eu-sm 
Correct Spelling:  chald-ai-sm 
Check more misspelled words of Chaldaism to spell it correct.

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