Where does “prófsumma” come from?
prófsumma (Icelandic) comes from Icelandic summa, from Latin summa, from Latin summus, from Proto-Italic supemos, from Proto-Indo-European (s)úp-m̥mo-s, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.
prófsumma (Icelandic): checksum
Ancestry of “prófsumma”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Icelandic | summa | a sum |
| 2 | Latin | summa | top, summit, highest point or place; the... |
| 3 | Latin | summus | highest, greatest, the most high; top, on top |
| 4 | Proto-Italic | supemos | — |
| 5 | Proto-Indo-European | (s)úp-m̥mo-s | — |
| 6 | Proto-Indo-European | upó | under, below |
| 7 | Proto-Indo-European | h₃ewp- | — |