Where does “exquadro” come from?
exquadro (Vulgar Latin) comes from Latin quadrus, from Latin quadro, from Latin quadra, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos — and.
Ancestry of “exquadro”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Latin | quadrus | square |
| 2 | Latin | quadro | I make four-cornered, square, make square; I put... |
| 3 | Latin | quadra | square |
| 4 | Latin | quattŭor | four; 4 |
| 5 | Portuguese | quarto | ordinal form of quatro; fourth; quarter; fourth;... |
| 6 | Old Portuguese | quarto | quarter |
| 7 | Latin | quārtus | fourth |
| 8 | Proto-Indo-European | kʷeturtos | — |
| 9 | Proto-Indo-European | kʷetwóres | four |
| 10 | Proto-Indo-European | kʷe- | and |