the West; abbr. for Spain 西班牙[Xi1 ban1 ya2]; Spanish
西 was written two different ways in ancient scripts: (1) a pictograph of a bird's nest, and (2) a variant of the phonetically similar 囟.
《說文》：“西，鳥在巢上，象形。日在西方而鳥棲，故因以為東西之西。”