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Dairy vs Almond: The Ongoing Battle over the 'Milk' Label

arstechnica.com

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Re: Dairy vs Almond: The Ongoing Battle over the 'Milk' Label

#3
post #2

According to the Oxford English Dictionary, the expression "mylke of almaundes", i.e. almond milk, was used in 1425. So I'd say the use of "milk" to refer to non-dairy products is fairly well established.

The OED lists 270,000 words and 600,000 definitions, pretty much anything you can imagine is in there.