Most game; the superlative form meaning most courageous, spirited, or determined in facing challenges.
Superlative form of 'game' (Old English 'gamen'), with the '-est' suffix (Old English '-ast') applied to the adjective 'game,' meaning willing or brave.
Interestingly, 'game' shifted meanings over centuries—it started as 'play,' evolved to mean 'willing to play along,' and finally became 'brave' because brave people don't back down from challenges.
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