English
energic
From energy + -ic.
Formed from energy + -ic
Proto-Indo-European *werǵ- ‘to make’
…
Ancient Greek ἐνεργός ‘active’
Ancient Greek ἐνέργεια ‘activity’
Late Latin energia
Middle French énergie
English energy
Today it means
adj Potent, effective.
Language periods are conventional ranges, not dates for this word.
Etymograph / energic