Where does “pentagonal” come from?
pentagonal (Romanian) comes from Romanian Pentagon, from English Pentagon, from Middle French pentagone, from Late Latin pentagonum, from Ancient Greek πεντάγωνον, from Ancient Greek πεντάγωνος, from Ancient Greek γωνία, from Ancient Greek γόνυ — knee.
pentagonal (Romanian): pentagonal
Definitions
- pentagonal
Ancestry of “pentagonal”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Romanian | Pentagon | Pentagon |
| 2 | English | Pentagon | The headquarters of the United States Department of Defense |
| 3 | Middle French | pentagone | — |
| 4 | Late Latin | pentagonum | pentaphyllon |
| 5 | Ancient Greek | πεντάγωνον | pentagon |
| 6 | Ancient Greek | πεντάγωνος | five-angled |
| 7 | Ancient Greek | γωνία | corner, angle; joiner's square; cornerstone |
| 8 | Ancient Greek | γόνυ | knee |
| 9 | Proto-Hellenic | gónu | knee |
| 10 | Proto-Indo-European | ǵónu | knee |