ELI5: Explain Like I'm 5

Proto-Indo-European root

Long long time ago, before your grandparents or great grandparents were born, people lived in different parts of the world and spoke different languages. However, some of these languages were very similar to each other because they all originated from something called Proto-Indo-European root.

Think of a root as the start of a tree, where all the branches and leaves come from. The Proto-Indo-European root is like the start of a big family tree, where lots of languages come from.

Imagine that your family is like a language tree. You have your parents, grandparents, great grandparents, and so on. If you go back far enough, you might find that you have ancestors who lived in other countries and spoke different languages. Maybe they spoke Spanish, French or Chinese.

It’s the same with the Proto-Indo-European root. Thousands and thousands of years ago, there were people who lived in one particular place who spoke a language that was the early ancestor of many of the languages we speak today.

So, while English, Spanish, French, German, Russian and many other languages might sound very different from each other today, they actually have a lot in common because they share many root words and grammar rules that all came from the Proto-Indo-European root.

It’s like they are all distant cousins, with a shared language heritage that connects them all.