Where does “femtobecquerel” come from?
femtobecquerel (English) comes from English femto-, from Danish femten, from Old Norse fimmtán, from Proto-Germanic fimftehun, from Proto-Germanic tehun, from Proto-Indo-European déḱm̥t — ten.
femtobecquerel (English): An SI unit of radioactive activity equal to 10−15...
Definitions
- An SI unit of radioactive activity equal to 10−15...
Ancestry of “femtobecquerel”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | femto- | API; In the International System of Units and... |
| 2 | Danish | femten | fifteen |
| 3 | Old Norse | fimmtán | fifteen |
| 4 | Proto-Germanic | fimftehun | fifteen |
| 5 | Proto-Germanic | tehun | ten |
| 6 | Proto-Indo-European | déḱm̥t | ten |