Where does “antidiagonal” come from?
antidiagonal (Portuguese) comes from Portuguese diagonal, from Latin diagōnālis, from Ancient Greek διαγώνιος, from Ancient Greek δῐᾰ-, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.
antidiagonal (Portuguese): antidiagonal the diagonal of a matrix that leads from top-right towards bottom-left
Definitions
- antidiagonal the diagonal of a matrix that leads from top-right towards bottom-left
Ancestry of “antidiagonal”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Portuguese | diagonal | diagonal joining two nonadjacent vertices |
| 2 | Latin | diagōnālis | diagonal |
| 3 | Ancient Greek | διαγώνιος | from angle to angle |
| 4 | Ancient Greek | δῐᾰ- | apart; through, across; through; in different... |
| 5 | Ancient Greek | διά | throughout |
| 6 | Proto-Indo-European | dwís | twice, doubly; in two |
| 7 | Proto-Indo-European | dwóh₁ | two |