Where Does the Word Epistemology Come From?


Jane Flores

Epistemology is the branch of philosophy that deals with the study of knowledge. It comes from two ancient Greek words, “episteme” which means “knowledge,” and “logos” which means “study.” The term was first used in the 18th century by Scottish philosopher James Frederick Ferrier.

The Roots of Epistemology

The study of epistemology dates back to ancient Greek philosophy, particularly the works of Plato and Aristotle. Plato believed that knowledge was innate, while Aristotle believed that knowledge came from experience.

Plato’s Epistemology

Plato’s epistemology was based on his theory of Forms or Ideas. He believed that there was a perfect world of Forms or Ideas beyond the physical world we experience. These Forms were eternal, unchanging, and perfect in every way.

Plato argued that our senses could only give us a flawed version of reality because they were limited and unreliable. Therefore, true knowledge could only be obtained through reason and contemplation of these eternal Forms.

Aristotle’s Epistemology

Aristotle’s epistemology was based on his theory of causality. He believed that everything had a cause and effect relationship, and if we could understand these relationships, we could gain knowledge about the world.

Aristotle argued that our senses were reliable sources of information about the world. However, he also recognized that our senses could be fooled by illusions or distortions. Therefore, he emphasized the importance of careful observation and empirical investigation to gain accurate knowledge.

The Development of Modern Epistemology

During the Enlightenment era in Europe (17th-18th centuries), philosophers started to question traditional ways of thinking about knowledge and truth. They began to emphasize reason and evidence over tradition and authority.

René Descartes is often credited with starting modern epistemology with his famous statement “Cogito, ergo sum” (“I think, therefore I am”). He argued that the only thing we could be certain of was our own existence because we could doubt everything else.

John Locke also made significant contributions to epistemology with his theory of empiricism. He argued that all knowledge came from experience and sensation and that there were no innate ideas or knowledge.


In conclusion, the word “epistemology” comes from the ancient Greek words “episteme” meaning “knowledge” and “logos” meaning “study.” The study of epistemology has its roots in ancient Greek philosophy, particularly the works of Plato and Aristotle. Modern epistemology developed during the Enlightenment era with philosophers such as Descartes and Locke emphasizing reason and evidence over tradition and authority.