I think “Classical Liberalism” is the most widely used term to get across what you mean.
Unfortunately, common usage is to divorce political terminology entirely from its foundations, and “Conservative” and “Liberal” now just commonly mean “Reactionary” and “vaguely socially progressive”. This is probably because “Liberal” capitalism is so hegemonic in the west (or at least the Anglosphere), that politics has been reduced to a hyper focus on personal and social issues, and excluding the possibility of economic change or class politics.
The Wikipedia Classical liberalism article is awful.
Rather than starting with who defined this usage of the term, and when, it starts by cherry-picking early liberals and ideas and slotting them into the term, which they certainly never used, and pretending that it’s a tradition that’s always been there with junk like “Classical liberalism gained full flowering in the early 18th century, building on ideas starting at least as far back as the 16th century, within the Iberian, British, and Central European contexts”, and that the “social liberals” are the ones that branched off.
From what I can tell, Friedrich Hayek used it in his 1944 book The Road to Serfdom. Apparently it was at odds with how other people were using the term, because he added a clarification in 1956 to explain his Humpty-Dumptying of it.