Yep, in this context "originalism" refers to the philosophy that the way to answer Constitutional questions is to try to divine the original intent of the Found

Yep, in this context "originalism" refers to the philosophy that the way to answer Constitutional questions is to try to divine the original intent of the Founders who wrote it. See https://en.wikipedia.org/wiki/Originalism https://en.wikipedia.org/wiki/Originalism for more details. The opposite of originalism is the "living document" philosophy (see https://en.wikipedia.org/wiki/Living_Constitution https://en.wikipedia.org/wiki/Living_Constitution), which argues that the meaning of the document has to be interpreted by each generation in the light of their own experience.