While it is true our first ancestors may have used some type of sign language, eventually verbal communication evolved. The oldest words we know of are building block words, reflecting key elements in developing societies across humanity. These words go back more than a thousand years!
I – The word I is the ultimate personal pronoun, referring to oneself. This word dates all the way back to before the year 900, and it makes sense because humans needed ways to refer to themselves (as opposed to their mother, brother, husband, child). Self-identity was and always will be important.
We – is the nominative plural of I, indicating possession, so of course it was created at the same time. if you have a way to reference yourself (I), then why not find a way to describe the whole gang, as well.
Give – originated before the year 900, which means that man learned long ago how to work together and to share.
Mother – The thing about this word is that it supports the idea that the concept of ‘family’ goes back thousands of years. For all this time, there has been a way to describe the person who brought you into the world.
Black – Interestingly enough, black is another one of the earliest words in our language (before the year 900) picked up on the fact that the sun sets every night, and the sky becomes dark.
Fire – This is another building-block word, describing an essential concept, and it probably helped our ancestors live longer.
One, two, three – The concept of mathematics stretches back through the centuries. The creation of numbers suggest that a sense of sequential order was necessary in early civilization. Makes sense for planning, hunting, and gathering purposes.