Where does “störtdyka” come from?

störtdyka (Swedish) comes 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, from Proto-Germanic þaką — to cover; pole, stick, beam.

störtdyka (Swedish): to nosedive (of a plane or bird or the like)

Definitions

  1. to nosedive (of a plane or bird or the like)

Ancestry of “störtdyka”, step by step

störtdyka traces back through two separate lines of ancestry.

via Swedish dyka

StepLanguageWordMeaning
1Swedishdykato dive
2Old Czechdékadagger stabbing weapon
3Middle High Germandecke—
4Old High Germantheckī—
5Old High Germanthecken—
6Proto-West Germanicþakkjanto cover; to burn
7Proto-Germanicþakjanąto cover; to burn
8Proto-Germanicþakąroof, cover
9Proto-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 →