I've noticed that potato chips are translated as croustilles in Canada. This seems to be a Quebec French term (and the term pomme chips is used elsewhere)(1)(2)
I haven't been able to find where this usage of the term originates from. I'm guessing the word itself must come from croustiller, but I'm wondering when/how the term started being used specifically in the context of potato chips?
Any insight is appreciated, and since my French is very limited, please let me know if I made any incorrect assumptions!