What is the meaning of pommes neuf in English?

"pommes" are Apples in French.

"neuf" means either 'nine' or 'brand new'

but the two Words together do not seem to make sense in French.

Pommes pont neuf are chips (i.e. French fries) cooked twice, to make them crisper. You half cook them, then reheat the oil and cook them again.