From Wiktionary, the free dictionary
Tat + Kraft
Tatkraft f (genitive Tatkraft, no plural)
- energy for work
Declension of Tatkraft [sg-only, feminine]
- “Tatkraft” in Digitales Wörterbuch der deutschen Sprache
- “Tatkraft” in Uni Leipzig: Wortschatz-Lexikon
- “Tatkraft” in Duden online