Where does “bergsäker” come from?

bergsäker (Swedish) comes from Swedish säker, from Middle Low German seker, from Old Saxon sikur, from Proto-West Germanic sikur, from Latin sēcūrus, from Latin sē-, from Latin sex, from Proto-Italic seks — six.

bergsäker (Swedish): absolutely sure (of something), dead certain

Definitions

  1. absolutely sure (of something), dead certain

Ancestry of “bergsäker”, step by step

bergsäker traces back through two separate lines of ancestry.

via Swedish säker

StepLanguageWordMeaning
1Swedishsäkersafe, secure; sure, certain
2Middle Low Germanseker—
3Old Saxonsikur—
4Proto-West Germanicsikursecure, safe; sure, certain
5Latinsēcūruscareless, negligent
6Latinsē-apart-; aside-; away
7Latinsexsix; 6
8Proto-Italicsekssix
9Proto-Indo-Europeanswéḱssix

via Swedish Berg

StepLanguageWordMeaning
1SwedishBerga mountain
2Old NorsebjargAlternative form of berg; cliff
3Proto-Germanicbergazhill; mountain; refuge; shelter
4Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain
Every word from Proto-Indo-European swéḱs →Every word from Latin sē- →Every word from Proto-Italic seks →