“Scot” you may know. A Scot (escocés) is a person who is Scottish (escocés). The male is a Scotsman (escoces) and the female is a Scotswoman (escocesa).

“Scot-free” is a different idea. It is a compound (compuesto) adjective, and it has two related meanings. Examine these:

Someone can “get off scot-free” (sale impune),which means that he is unpunished for his crime or wrongdoing (maldad, pecado).

Someone could be unhurt in an accident and escapes scot-free (sale iluso).