The “it’s french for egg” theory is generally considered debunked.
A different blog had this to say:
> Another, and far more accepted, theory is that this sense of love comes from the expression “to play for love.” The idea is that a person who fails to make any points doesn’t care because they are playing for love of the game, rather than playing to win
https://www.merriam-webster.com/wordplay/word-origin-of-love-in-tennis
This might not be the true origin but there are writings going back to the 1600s that seem to imply using love in this way so it’s the best that we seem to have at the moment.
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