Relating to or characteristic of squid or cuttlefish; belonging to the order of squid-like cephalopods.
From Latin 'calamarium' meaning 'squid' or 'pen-fish' (because squid were used as pens), plus '-ian' suffix; the word connects to ancient writing instruments.
The word 'calamarian' comes from the fact that ancient Romans used squid ink for writing—so the animal literally gave its name to a writing tool, which is why we still call dark ink 'India ink' in some contexts.
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