Where does “lämpötähystin” come from?

lämpötähystin (Finnish) comes from Finnish tähystin, from Finnish tähystää, from Finnish tähti, from Swedish täkt, from Swedish tå, from Swedish taga, from Old Swedish taka, from Old Norse taka — to touch.

lämpötähystin (Finnish): thermal monocular

Definitions

  1. thermal monocular

Ancestry of “lämpötähystin”, step by step

lämpötähystin traces back through two separate lines of ancestry.

via Finnish tähystin

StepLanguageWordMeaning
1Finnishtähystinendoscope; First-person singular indicative past...
2Finnishtähystääto keep a lookout; to examine with an endoscope
3Finnishtähtistar; a famous person, celebrity, star; a white...
4Swedishtäkta quarry
5Swedishtoe; a body part
6SwedishtagaDated form of ta
7Old Swedishtakato touch, reach; to grasp, seize; to take, bring
8Old Norsetakato take; taking, capture; taking, seizing
9Proto-Germanictēkanąto touch; to grasp
10Proto-Indo-Europeandeh₁g-to touch

via Finnish lämpö

StepLanguageWordMeaning
1Finnishlämpöwarmth, heat; heat; fever
Every word from Proto-Indo-European deh₁g-Every word from Proto-Germanic tēkanąEvery word from Old Norse taka