Where does “torsiograph” come from?

torsiograph (English) comes from English graph, from Ancient Greek γράφω, from Proto-Hellenic grəpʰō, from Proto-Indo-European gerbʰ-, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

torsiograph (English): An instrument for measuring the torsion of the crankshaft of an engine

Definitions

  1. An instrument for measuring the torsion of the crankshaft of an engine

Ancestry of “torsiograph”, step by step

torsiograph traces back through two separate lines of ancestry.

via English graph

StepLanguageWordMeaning
1EnglishgraphA data chart intended to illustrate the...
2Ancient Greekγράφωto scratch, cut into; to draw, sketch, paint; to...
3Proto-Hellenicgrəpʰōto scratch, cut or carve into
4Proto-Indo-Europeangerbʰ-to carve
5Proto-Indo-Europeanger-to turn, bend, twist, wind; to tie, bind...

via English torsion

StepLanguageWordMeaning
1EnglishtorsionThe act of turning or twisting, or the state of...
2Late Latintorsioa wringing or griping; colic
3Latintorqueōto spin, whirl, twirl, turn, cause to revolve
4Proto-Indo-Europeanterkʷ-to turn, spin
Every word from Proto-Indo-European ger-Every word from Proto-Indo-European gerbʰ-Every word from Proto-Hellenic grəpʰō
torsiograph — Etymology, Origin & Word History | Etymology Explorer