Where does “attowatt” come from?
attowatt (English) comes from English atto-, from Danish atten, from Old Norse áttján, from Proto-Germanic ahtōutehun, from Proto-Germanic ahtōu, from Proto-Indo-European oḱtṓw, from Proto-Indo-European aḱ- — sharp, pointed; sharp, pointed, edgy; sharp,...
attowatt (English): An SI unit of power equal to 10−18 watts. Symbol:...
Definitions
- An SI unit of power equal to 10−18 watts. Symbol:...
Ancestry of “attowatt”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | atto- | API; In the International System of Units and... |
| 2 | Danish | atten | eighteen |
| 3 | Old Norse | áttján | eighteen |
| 4 | Proto-Germanic | ahtōutehun | eighteen |
| 5 | Proto-Germanic | ahtōu | eight |
| 6 | Proto-Indo-European | oḱtṓw | eight |
| 7 | Proto-Indo-European | aḱ- | sharp, pointed; sharp, pointed, edgy; sharp,... |