Wasseler or Wassailer: How To spell?

The word Wasseler is misspelled against Wassailer, a noun meaning "One who drinks wassail; one who engages in festivity, especially in drinking; a reveler."

Word contains consecutive vowels 'AI' in between alphabets wass & ler is misspelled as 'E'
Wrong Spelling:  wass-e-ler 
Correct Spelling:  wass-ai-ler 
Explore spell check of Wassailer to spell without errors.

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