Etymology Explorer › English

Where does “rheostat” come from?

Rheostat derives from Ancient Greek ῥέω (rheō), meaning "to flow," ultimately from Proto-Indo-European srew- and ser-, roots associated with flowing motion.

rheostat (English): An electrical resistor, with two terminals, whose...

Definitions

  1. An electrical resistor, with two terminals, whose...

Ancestry of “rheostat”, step by step

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

Words derived from “rheostat”

  • rheostatic
Every word from Proto-Indo-European steh₂- →