Where does “Penrose diagram” come from?
Penrose diagram (English) comes from English diagram, from French diagramme, from Italian diagramma, from Ancient Greek διάγραμμα, from Ancient Greek δῐᾰ-, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.
Penrose diagram (English): a two-dimensional diagram capturing the causal...
Definitions
- a two-dimensional diagram capturing the causal...
Ancestry of “Penrose diagram”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | diagram | A plan, drawing, sketch or outline to show how... |
| 2 | French | diagramme | diagram |
| 3 | Italian | diagramma | diagram; chart; graph |
| 4 | Ancient Greek | διάγραμμα | That which is marked out in lines, plan, diagram |
| 5 | Ancient Greek | δῐᾰ- | apart; through, across; through; in different... |
| 6 | Ancient Greek | διά | throughout |
| 7 | Proto-Indo-European | dwís | twice, doubly; in two |
| 8 | Proto-Indo-European | dwóh₁ | two |