Spinozism

A common weapon against Cartesians in those latter days was an accusation of Spinozism.

But of course Spinozism in an empiricist mode is Spinozism with a considerable difference, as ethics written in Hume's preferred nonabstruse style (and increasingly nonabstruse from Treatise to Essays and Enquiries) sets a different tone from ethics in ordine geometrico.

Monism, as characterized here, seems to be a commitment both of Spinoza and of variants of Spinozism influential in Germany in the 1780s and 90s.