A midpoint of anything is the point exactly halfway between the beginning point and the end point. So logically, it is the "midpoint".
A ray has a beginning but no endpoint.
An origin is the beginning for an object or concept. A person can similarly have a country of origin, the locale of his birthplace.In a coordinate system, an "origin" is a starting point.I believe that it is where a word comes from or originates.that is why it is called the "origin"it means the starting point. you can see the word orgin in the function graph in math too.
the end point
Origin is a starting point. It begins with the letters OR.
The starting point in a race is called the starting line. The end point of a race is called the finish line.
There is no end point, a ray is never ending but has a point to represent the beginning
The starting point of a river is called a source. A smaller river that flows into a larger river is a tributary.
Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
The starting materials in a chemical reaction are called reactants.
For Latitude, the Equator is the zero point. For Longitude, the Prime Meridian at Greenwich UK, is the starting point of zero.
Point of imitation