Where does “brontograph” come from?

brontograph (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...

brontograph (English): A tracing or chart showing the phenomena...

Definitions

  1. A tracing or chart showing the phenomena...

Ancestry of “brontograph”, step by step

brontograph 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 Ancient Greek βροντή

StepLanguageWordMeaning
1Ancient Greekβροντήthunder
2Ancient GreekβρέμωI roar; I clash; I shout, I rage
3Proto-Indo-European*bʰrémetito hum, rumble
Every word from Proto-Indo-European ger-Every word from Proto-Indo-European gerbʰ-Every word from Proto-Hellenic grəpʰō