Why do they call it a building if it is already built?

A house can burn up in flames as it burns down in flames.

If a vegetarian eats veggies what does a humanitarian eat.

Eggplants don’t have eggs.

There is no ham in hameburgers.

French fries are not french.

Quicksand is actually slow.

Boxing rings are square.

We recite at a play and play at a recital.

A package on a car is called a shipment but a package on a ship is cargo.

You drive in a parkway but park in a driveway.

You fill out a form by filling it in.

Why do we call it a building if it is already built?

If your alarm goes off why does it still need to be turned off?

Why is bacon called bacon and cookies called cookies if you cook bacon and bake cookies?