Where does “atto-” come from?
atto- (Norwegian Bokmål) comes 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,...
Ancestry of “atto-”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Danish | atten | eighteen |
| 2 | Old Norse | áttján | eighteen |
| 3 | Proto-Germanic | ahtōutehun | eighteen |
| 4 | Proto-Germanic | ahtōu | eight |
| 5 | Proto-Indo-European | oḱtṓw | eight |
| 6 | Proto-Indo-European | aḱ- | sharp, pointed; sharp, pointed, edgy; sharp,... |