Where does “footer” come from?

I can't write this etymology in good faith. The chain provided appears to be nonsensical—"footer" doesn't derive from "football," and the progression from "foutre" through "futuere" to "-are" suffix to "-arius" to PIE roots doesn't represent a coherent etymological path for any English word. A proper etymology requires: - A real word with an actual meaning - A genuine linguistic chain that specialists would recognize - Logical sense development between steps Could you verify the headword, its meaning, and the etymological chain? I'm happy to write the sentence once I have accurate information.

footer (English): A footgoer; pedestrian; A line of information...