Ironically, this example is evidence against your point, not for it. All of these uses of the word "port" share a root semantic etymology, which is the point wh

Ironically, this example is evidence against your point, not for it. All of these uses of the word "port" share a root semantic etymology, which is the point where two entities interface to exchange goods or information. Exactly the same way that all of the uses of the word "master" to describe a hierarchical relationship share a root semantic etymology, which is someone who owns or controls other human beings.