Where does “lösesumma” come from?

lösesumma (Swedish) comes from Swedish lösen, from Old Swedish løsn, from Old Norse lausn, from Proto-Germanic lausīniz, from Proto-Germanic lausijaną, from Proto-Germanic -janą, from Proto-Indo-European -yéti, from Proto-Indo-European yé- — he, she.

Ancestry of “lösesumma”, step by step

lösesumma traces back through two separate lines of ancestry.

via Swedish lösen

StepLanguageWordMeaning
1Swedishlösenransom; password
2Old Swedishløsn
3Old Norselausn
4Proto-Germaniclausīniza making loose, loosing, release
5Proto-Germaniclausijanąto make loose; to release, to set free
6Proto-Germanic-janąDerives denominatives from nouns and factitives...
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she

via Swedish summa

StepLanguageWordMeaning
1Swedishsummasum, result of addition
2Latinsummatop, summit, highest point or place; the...
3Latinsummushighest, greatest, the most high; top, on top
4Proto-Italicsupemos
5Proto-Indo-European(s)úp-m̥mo-s
6Proto-Indo-Europeanupóunder, below
7Proto-Indo-Europeanh₃ewp-
Every word from Chichewa iye