Where does “digraph” come from?

Digraph comes from Ancient Greek δίς meaning "twice," from Proto-Indo-European dwís, itself from dwi- and ultimately dwóh₁, the root for "two."

digraph (English): A directed graph; A two-character sequence used...

Definitions

  1. A directed graph; A two-character sequence used...

Ancestry of “digraph”, step by step

digraph 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 directed

StepLanguageWordMeaning
1EnglishdirectedIn a manner emphasizing one's point of view;...

Words derived from “digraph

Every word from Proto-Indo-European ger-