Where does “fatgraph” come from?

fatgraph (English) comes from English fat, from French fat, from Old Occitan fat, from Latin fatuus, from Latin fātus, from Latin for, from Proto-Italic fāōr, from Proto-Indo-European bʰéh₂ti — to speak, to be talking.

fatgraph (English): A combinatorial object representing the geometry...

Definitions

  1. A combinatorial object representing the geometry...

Ancestry of “fatgraph”, step by step

fatgraph traces back through two separate lines of ancestry.

via English fat

StepLanguageWordMeaning
1EnglishfatCarrying more fat than usual on one's body;...
2Frenchfatconceited
3Old Occitanfat
4Latinfatuusfoolish, silly, simple; stupid; insipid,...
5Latinfātusspoken, said, told, foretold, related, predicted; having or had spoken, etc
6Latinfor"defective"; I speak, talk, say
7Proto-Italicfāōrspeak
8Proto-Indo-Europeanbʰéh₂tito speak, to be talking

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...
Every word from Proto-Indo-European bʰéh₂tiEvery word from Proto-Italic fāōrEvery word from Latin for
fatgraph — Etymology, Origin & Word History | Etymology Explorer