Language evolution

It is clear just from everyday English that language is the product of evolution. While the changes in language may not occur every day, it is obvious that it happens. Every year words are added and removed from various dictionaries, spellings of words are modified, words such as "google" enter the language, and the English language further distances itself from similar languages such as Spanish or Latin. There is no question that language evolves. It can be seen everywhere.

There is no specific time when the language we speak changes, as it tends to slowly occur over time, but there are many specific ways in which the changes can occur. The only real necessity for language to change is that people commonly understand a new phrase or word to have the same meaning or set of meanings. By far, the easiest way for that to happen is to make the new word's meaning self-explanatory. For example; taking a known or commonly used noun and making it a verb by adding "ed." Ed "paintball-ed" the house. Because the meaning is clearly understood, others can easily follow the example set by the speaker and use it in their own sentences. Another way that language can quickly evolve is to have a large number of people of various cultures and languages enter society. New words are quickly adopted by those who consistently hear them to mean the same thing and use it on their own. 

Language evolves because it was never set in stone in the first place. Before rules such as spelling or sentence structure came into play, a word's only purpose was and still occasionally is that the listener understands it. New words inevitably develop as more people use them, and if the majority understands it, it becomes a word. Common era regulations such as dictionaries and grammar rules can only slow it down.