Falcata, saunion and falarica...

[D B Campbell]

Thanks for the explanation of where falcata comes from, but you didn't say what the plural of the word is.

It's an adjective, so it takes its ending from the noun it describes.

I find it used a lot in the singular, referring to a curved Spanish sword, so I had presumed that there is a plural of it as well. Is this not correct?

Where have you seen the word used? I wonder if this may be an error? Or a neologism, like "lorica segmentata"?