Where does “störtdykning” come from?

störtdykning (Swedish) comes from Swedish dykning, from Swedish dyka, from Old Czech déka, from Middle High German decke, from Old High German theckī, from Old High German thecken, from Proto-West Germanic þakkjan, from Proto-Germanic þakjaną — to cover; pole, stick, beam.

störtdykning (Swedish): a nosedive (by a plane or bird or the like)

Definitions

  1. a nosedive (by a plane or bird or the like)

Ancestry of “störtdykning”, step by step

störtdykning traces back through two separate lines of ancestry.

via Swedish dykning

StepLanguageWordMeaning
1Swedishdykningdiving (with diving gear)
2Swedishdykato dive
3Old Czechdékadagger stabbing weapon
4Middle High Germandecke—
5Old High Germantheckī—
6Old High Germanthecken—
7Proto-West Germanicþakkjanto cover; to burn
8Proto-Germanicþakjanąto cover; to burn
9Proto-Germanicþakąroof, cover
10Proto-Indo-European(s)teg-to cover; pole, stick, beam

via Swedish störta

StepLanguageWordMeaning
1Swedishstörtato descend or fall uncontrollably, ultimately...
2Old Swedishstyrta—
3Middle Low Germanstörten—
4Old Saxonsturtian—
5Proto-West Germanicsturtijanto fall down, tumble
6Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...
Every word from Proto-Indo-European (s)teg- →Every word from Proto-Germanic þaką →Every word from Proto-Germanic þakjaną →