Where does “trihedron” come from?

trihedron (English) comes from English -hedron, from Ancient Greek ἕδρα, from Proto-Hellenic *hédrā.

trihedron (English): A geometric figure composed of three planes...

Definitions

  1. A geometric figure composed of three planes...

Ancestry of “trihedron”, step by step

StepLanguageWordMeaning
1English-hedron"Forms the names of solid figures bounded by a...
2Ancient Greekἕδραseat, chair, stool, bench; the act of sitting;...
3Proto-Hellenic*hédrā—
Every word from Proto-Hellenic *hédrā →Every word from Ancient Greek ἕδρα →Every word from English -hedron →