Restreonment or Restrainment: How To spell?

The word Restreonment is misspelled against Restrainment, a noun meaning "The act of restraining."

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

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