Comment by jimnotgym

I don't think we are mistaken to call the potatoes we put in the roasting tin with our roasting meat for a classic Sunday roast....roast potatoes.

Baked potatoes are baked skin-on whole in the oven.

I don't think 'mistakenly' is the word you were looking for. Otherwise we can start on a 'who invented English anyway' thread of food naming.

+ crisps that some people mistakenly call chips

+ chips that some people mistakenly call fries

+ biscuits that some people mistakenly call cookies

Etc