Where does “quadrature” come from?
Quadrature derives from Latin quadratura, from quadro meaning to square, from quattuor meaning four, ultimately from an Indo-European root also underlying caput meaning head.
quadrature (English): The process of making something square; squaring;...
Definitions
- The process of making something square; squaring;...
Ancestry of “quadrature”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Latin | quadratura | a squaring, making square, quadrature; a square |
| 2 | Latin | quadrō | to make four-cornered, square, make square |
| 3 | Latin | quādrus | 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 |