washie (what my mom called washing the butt)

i hate that people still use "motion picture" when talking about movies.  i guess not normal people but in previews and voice-overs they still do that.  i feel like it should have ended around the same time people started calling horseless carriages, cars.  actually now that im on the subject, id also be curious to know where the word movie started.  obviously the root word is move.  but there must be more to it.  ill ask my wife.  shes an english major.  shes gotta be good for at least this much.