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In tennis, "love" signifies a score of zero. This usage is thought to originate from the French word "l'oeuf," meaning "egg," due to the resemblance of an egg to the written figure 0. Another prevailing theory suggests "love" derives from the expression "to play for love," implying a player is participating for the enjoyment of the game rather than for points or monetary stakes. This concept aligns with the origin of the word "amateur," from the Latin "amare" (to love). The scoring progression in tennis, from love to 15, 30, and 40, is of medieval origin, with the reason for 40 instead of 45 remaining unclear.12

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