What is the Greek word for 'work'?

The Greek word for 'work' is "Ergon." This term is fundamental in various disciplines, particularly in physics, where it refers to the work done by a force when it moves an object. The concept of work in physics is not just about physical labor but also involves the quantitative measure of energy transfer when an object is moved over a distance by an external force.

In contrast to the Greek term Ergon, the other choices represent different terms or concepts. "Energia" is a term more closely associated with energy in a general sense, often translated from the Greek word "energeia". "Energeial" appears to be a variant or derivative that is not commonly recognized in standard Greek terminology. "Labor," while it can refer to work in English, does not have the Greek origin that Ergon does and is more focused on physical effort rather than the broader definition of work. Thus, Ergon is the correct term representing 'work' in the context of Greek language and concepts.