Lackbreyn or Lackbrain: How To spell?

The word Lackbreyn is misspelled against Lackbrain, a noun meaning "One who is deficient in understanding; a witless person."

Word contains consecutive vowels 'AI' in between alphabets lackbr & n is misspelled as 'EY'
Wrong Spelling:  lackbr-ey-n 
Correct Spelling:  lackbr-ai-n 
Explore spell check of Lackbrain to spell without errors.

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