Gaynpayn or Gainpain: How To spell?

The word Gaynpayn is misspelled against Gainpain, a noun meaning "Bread-gainer; -- a term applied in the Middle Ages to the sword of a hired soldier."

Word contains consecutive vowels 'AI' twice is misspelled as 'AY'
Wrong Spelling:  g-ay-np-ay-n 
Correct Spelling:  g-ai-np-ai-n 
Browse incorrect spellings of Gainpain to spell it good.

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