An example of energetic is a person who works at full speed for 12 hours a day.
Origin of energetic
- Greek energētikos from energein to be active from energos active energy
From American Heritage Dictionary of the English Language, 5th Edition
- From Ancient Greek ἐνεργητικός (energētikos), from ἐνεργέω (energeō, “to be active”), from ἐνεργός (energos, “active”)