Emily Dickinson Lexicon

EN-ER-GET'IC, or EN-ER-GET'IC-AL, a. [Gr. ενεργητικος, from ενεργης, ενεργεω; εν and εργον, work. See Energy.]

1. Operating with force, vigor and effect; forcible; powerful; efficacious. We say, the public safety required energetic measures. The vicious inclination of men can be restrained only by energetic laws. [Energic is not used.]
2. Moving; working; active; operative. We must conceive of God as a Being eternally energetic.