Where does “radii” come from?
radii (Esperanto) comes from Esperanto radio, from Latin radius, from English -án, from Middle English -an.
radii (Esperanto): to radiate
Ancestry of “radii”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Esperanto | radio | radio |
| 2 | Latin | radius | ray; staff, rod; spoke |
| 3 | English | -án | — |
| 4 | Middle English | -an | — |
Words derived from “radii”