Where does “kaspisk trut” come from?

kaspisk trut (Swedish) comes from Swedish trut, from Old Swedish thrutin, from Old Norse þrútna.

kaspisk trut (Swedish): a Caspian gull (Larus cachinnans)

Definitions

  1. a Caspian gull (Larus cachinnans)

Ancestry of “kaspisk trut”, step by step

kaspisk trut traces back through two separate lines of ancestry.

via Swedish trut

StepLanguageWordMeaning
1SwedishtrutAny of several species of large gulls; mouth
2Old Swedishthrutin—
3Old Norseþrútna—

via Swedish kaspisk

StepLanguageWordMeaning
1SwedishkaspiskCaspian
Every word from Old Norse þrútna →Every word from Old Swedish thrutin →Every word from Swedish trut →