Where does “terawatt” come from?

terawatt (English) comes from German Watt, from Middle Low German wat, from Old Saxon hwat, from Proto-West Germanic hwat, from Proto-Germanic hwat, from Proto-Indo-European kʷód, from Proto-Indo-European kʷós — who.

terawatt (English): One million million watts, abbreviated as TW

Definitions

  1. One million million watts, abbreviated as TW

Ancestry of “terawatt”, step by step

terawatt traces back through 3 separate lines of ancestry.

via German Watt

StepLanguageWordMeaning
1GermanWattintertidal zone, foreshore, especially the vast...
2Middle Low Germanwatwhat
3Old Saxonhwatwhat; lo!, what!, indeed!
4Proto-West Germanichwatwhat
5Proto-Germanichwatnominative/accusative singular neuter of *hwaz
6Proto-Indo-Europeankʷódwhat
7Proto-Indo-Europeankʷóswho

via English Watt

StepLanguageWordMeaning
1EnglishWattWatt, a king of Sussex

via Czech watt

StepLanguageWordMeaning
1Czechwattwatt unit of power
Every word from Proto-Indo-European kʷós