Where does “gyrocircle” come from?
gyrocircle (English) comes from English circle, from Middle English circle, from Old French cercle, from Latin circulus, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos, from Proto-Indo-European -e-lós — Forms agent nouns from verbal roots.
gyrocircle (English): A hyperbolic circle in gyrovector space
Definitions
- A hyperbolic circle in gyrovector space
Ancestry of “gyrocircle”, step by step
gyrocircle traces back through two separate lines of ancestry.
via English circle
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | circle | A two-dimensional geometric figure, a line,... |
| 2 | Middle English | circle | — |
| 3 | Old French | cercle | circle |
| 4 | Latin | circulus | circle; An orbit; A ring, hoop |
| 5 | Latin | -ulus | Used to form a diminutive of a noun, indicating... |
| 6 | Proto-Italic | -olos | — |
| 7 | Proto-Italic | -elos | Forms desubstantival and deadjectival diminutive nouns |
| 8 | Proto-Indo-European | -e-lós | — |
| 9 | Proto-Indo-European | -lós | Forms agent nouns from verbal roots |
via English gyro
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | gyro | A gyroscope; A gyrocompass; An autogyro |
| 2 | English | gyroscope | an apparatus composed of a wheel which spins... |
| 3 | French | gyroscope | gyroscope |
| 4 | Ancient Greek | σκοπός | watcher, lookout; protector, guardian; spy, scout |
| 5 | Ancient Greek | σκέπτομαι | I look at, examine; I examine, consider, think |
| 6 | Proto-Hellenic | sképťomai | to look at |
| 7 | Proto-Indo-European | spéḱyeti | to be looking at, to keep looking at |
| 8 | Proto-Indo-European | speḱ- | to see, to look, to observe |