Where does “heliostat” come from?

heliostat (English) comes from French héliostat, from English -stat, from Ancient Greek στατός, from Ancient Greek ἵστημι, from Proto-Hellenic hístāmi, from Proto-Indo-European stísteh₂ti, from Proto-Indo-European steh₂- — to stand.

heliostat (English): A device that includes a plane mirror which turns...

Definitions

  1. A device that includes a plane mirror which turns...

Ancestry of “heliostat”, step by step

heliostat traces back through two separate lines of ancestry.

via French héliostat

StepLanguageWordMeaning
1Frenchhéliostatheliostat
2English-statforming nouns naming scientific instruments that...
3Ancient Greekστατόςstanding”, “stationary; placed, standing;...
4Ancient Greekἵστημιto make to stand, to stand, set; to stop, stay,...
5Proto-Hellenichístāmito stand
6Proto-Indo-Europeanstísteh₂tito be standing up, to be getting up
7Proto-Indo-Europeansteh₂-to stand

via New Latin heliostata

StepLanguageWordMeaning
1New Latinheliostata
2Latinstātusfixed, set, having been set
3Latinstōto stand
4Proto-Italicstaēōstand
5Proto-Indo-Europeansth₂éh₁yetito stand
6Proto-Indo-European*steh₂-

Words derived from “heliostat

Every word from Proto-Indo-European steh₂-Every word from Proto-Indo-European stísteh₂tiEvery word from Proto-Hellenic hístāmi