One obscure Greek word in a cartoon--κον

I don't understand one small Greek word in this cartoon. It looks like κον. The meaning of the rest is obvious:- IMG_1138.JPG. Am I right or is it a more obvious word I'm missing?:confused:
Is it perhaps καν with the meaning καθόλου or some such word but I haven't come across it before.
 
You're right, it's "καν", though I'd put the meaning more as "not even":

"Did you know it takes three sheep to make a woolen jumper?"
"No, I didn't even know they could knit!"


It's used for emphasis in negative sentences.
 
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