The other fundamental concept of the Milesians is the term arche. It means beginning; principle; original substance; in German, urstoff, ruling element. In alchemy the term arche was translated as prima materia or first matter.
Edinger establishes arche as the foundational Milesian concept, directly homologizing it with the alchemical prima materia and tracing its lexical progeny through archetype, archeology, and terms of governance.
, The Psyche in Antiquity, Book One Early Greek Philosophy thesis