Where does “pentagonous” come from?
pentagonous (English) comes from English ous, from English ou, from Afrikaans ou, from Dutch oud, from Middle Dutch out, from Old Dutch ald, from Proto-West Germanic ald, from Proto-Germanic aldaz — to grow, nourish.
pentagonous (English): Obsolete form of pentagonal
Definitions
- Obsolete form of pentagonal
Ancestry of “pentagonous”, step by step
pentagonous traces back through two separate lines of ancestry.
via English ous
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | ous | plural of ou |
| 2 | English | ou | A probably extinct species of Hawaiian... |
| 3 | Afrikaans | ou | An old fellow, guy, bloke; attributive form of... |
| 4 | Dutch | oud | old |
| 5 | Middle Dutch | out | old |
| 6 | Old Dutch | ald | — |
| 7 | Proto-West Germanic | ald | old |
| 8 | Proto-Germanic | aldaz | old, grown up |
| 9 | Proto-Indo-European | h₂eltós | — |
| 10 | Proto-Indo-European | h₂él- | to grow, nourish |
via English Pentagon
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | Pentagon | The headquarters of the United States Department of Defense |
| 2 | Middle French | pentagone | — |
| 3 | Late Latin | pentagonum | pentaphyllon |
| 4 | Ancient Greek | πεντάγωνον | pentagon |
| 5 | Ancient Greek | πεντάγωνος | five-angled |
| 6 | Ancient Greek | γωνία | corner, angle; joiner's square; cornerstone |
| 7 | Ancient Greek | γόνυ | knee |
| 8 | Proto-Hellenic | gónu | knee |
| 9 | Proto-Indo-European | ǵónu | knee |