Salt and tea are good examples for the 2 reasons that can be the cause for finding the same word in many languages. Salt is an ancient Indo-European word that

Salt and tea are good examples for the 2 reasons that can be the cause for finding the same word in many languages. Salt is an ancient Indo-European word that was already in use several millennia ago, so it has been inherited in most Indo-European languages. Tea is a relatively recent borrowing in the European languages, which has spread from one language to another, with a few pronunciation variants, across all Europe, regardless of the genetic relationships between languages.