Starboard
Starboard
Upland Sandpiper
The starboard side of a vessel is indicated with a green light.
The origin of term comes from old boating practices. Before boats had rudders on their centerline, boats were steered by use of a specialized oar. This oar was held by a sailor located towards the Stern (back) of the boat. However, like most of the rest of society, there were many more Right-handed sailors than Left-handed sailors. This meant that the right-handed sailors holding the steering oar (which had been broadened to provide better control) used to stand on the right side of the boat. The word starboard is a corruption of steering board, which in turn came from the Old Norse language word stýri, in the language of the vikings.
Similarly, the term for the left side of the boat, port, is derived from the practice of sailors Mooring on the left side (i.e., the Portboard side) as to prevent the steering boards from being crushed. Because the words portboard and starboard sounded too similar to be distingued under windy sailing conditions, portboard was shortened to port.
It would also be true that if the oarsman with the steering oar is on the right side of the ship, the oarsman on the port tack can see the red light of the ship on the starboard tack better than vice versa.