Where does “lögndetektor” come from?

lögndetektor (Swedish) comes from Swedish lögn, from Old Norse ljúga, from Proto-Germanic leuganą, from Proto-Indo-European lewgʰ- — to lie, to tell falsehood.

lögndetektor (Swedish): a lie detector

Definitions

  1. a lie detector

Ancestry of “lögndetektor”, step by step

lögndetektor traces back through two separate lines of ancestry.

via Swedish lögn

StepLanguageWordMeaning
1Swedishlögna lie
2Old Norseljúgato lie, to tell lies
3Proto-Germanicleuganąto lie, to tell a falsehood
4Proto-Indo-Europeanlewgʰ-to lie, to tell falsehood

via Swedish detektor

StepLanguageWordMeaning
1Swedishdetektora detector (device that detects something)
Every word from Proto-Indo-European lewgʰ-Every word from Proto-Germanic leuganąEvery word from Old Norse ljúga