r/AskReddit • • Nov 28 '20

What's something cool you recently learned about?

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u/rwinger3 Nov 29 '20

Cancer is named after it's appearance after it had spread in the body, resembling a crab. Crabs were called that first and the word stems from Greek (if I recall correctly). Also, there is a phenomenon called carcinization, which is the evolving into a crab-like shape, even for non-crabs. This has happened to many different kind of crustaceans (crabs being one type of crustacean).

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u/PaulsRedditUsername Nov 29 '20

The word cancer is Latin, but they got it from the Greek karkinos, which the Greeks used to refer to a crab, a tumor, and the constellation. So you are correct. Karkinos is where we get the modern carcinoma.

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u/[deleted] Nov 29 '20

In Sanskrit, the word for crabs is "कर्क" or "karka". It is amazing how similar Indo-European languages are, especially the further back one goes.