from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of tetragon.
Sorry, no etymologies found.
One can discover in the idea of extension, for example, ˜infinite numbers of intelligible triangles, tetragons, pentagons, and other such figures,™ as well as an infinite number of truths that can be demonstrated of them (ibid.).
Lastly I woondered what foundation and arches were able to vphold so monstrous a weight, whether the pyllars were hexagons or tetragons, and what varietie of columnes, and what number might serue, and after what sorte proportionately disposed and set.