That and etymology has explanatory power. It's how historical linguistics works and how we figured proto indo european out. It also correlates with genetics oddly enough so they follow a similar pattern (they aren't the same thing or in relation to each other though).
That and etymology has explanatory power. It's how historical linguistics works and how we figured proto indo european out. It also correlates with genetics oddly enough so they follow a similar pattern (they aren't the same thing or in relation to each other though).