Assealer or Assailer: How To spell?

The word Assealer is misspelled against Assailer, a noun meaning "One who assails."

Word contains consecutive vowels 'AI' in between alphabets ass & ler is misspelled as 'EA'
Wrong Spelling:  ass-ea-ler 
Correct Spelling:  ass-ai-ler 
Explore spell check of Assailer to spell without errors.

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