Ancient Greek personal names were often based on words from the Greek language. For example, the name "Alexander" comes from the word "alexo," which means "I defend." People would also use Greek words related to their parents, past ancestors, or their hometowns. For example, someone named "Pelopidas" might come from the Greek words "Pelops," which means "army," and "idas," which means "power." Ancient Greeks might also have had a different version of the same name, such as "Alexandra" for "Alexander."