Starboard is understood to be the part or right band that a vessel, boat, ship or vessel has. The word comes from the combination of the words stýri = rudder and boróa, wooden plank or side of the rudder of the old wooden paddle boats to propel the boats through the water since there were no fixed articulated pieces in the central rear part, so the person at the helm of the ship used wooden blades to propel the boats through the water.
This caused it to sink with the wooden pole to propel the boats through the water on the right side of the boat and from there it began to be called the right side of the rudder.
The starboard is the sector or right side of a means of maritime transport, which is identified because its right side lights up a green light and the port side is red but during the day you see a plate with its colors in both sides and at night they turn on the lights so that a boat that is at a certain distance from another boat can easily recognize if the boat is approaching or moving away.
The reason that the ship is given two different names on the right and left sides is to avoid confusing those people who are crew members. For example, in ancient times they used wooden shovels to propel boats through the water and move back and forth and the person who is looking back will speak of the right referring to the left and so on, as they dominate the names of the ship would not have any possible confusion.