The language of most of the tribes of the hunter gatherers is very simple, with limited vocabulary. See how the words turn from concrete to abstract. They are the same words, they change only meaning.
Look at the word to know. There are hundreds of words like that.
Originally the word to know meant to see. The concrete word became an abstract word, and then you needed another word to describe pure act of seeing.
Even that word is becoming abstracized.
We say: I see what you mean = I know what you say.
Yes, we make history, every day. It is fun