Yeah, quid pro quo literally means "one thing for another thing". The ambiguity of the "for" led to divergent evolutions. The "pro" (for) can be either mean "i

Yeah, quid pro quo literally means "one thing for another thing". The ambiguity of the "for" led to divergent evolutions. The "pro" (for) can be either mean "instead of", "in the place of" (One thing in the place of another thing). This is where the interpretation currently used in Italy and possibly other places settled on. But "pro" (for) also means "for the benefit of" and that's the interpretation that caught on in the Anglosphere.