Where does “рад” come from?
рад (Russian) comes from Russian радиан, from Latin radius, from English -án, from Middle English -an.
рад (Russian): glad; rad; API • m inan
Ancestry of “рад”, step by step
рад traces back through two separate lines of ancestry.
via Russian радиан
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | радиан | — |
| 2 | Latin | radius | ray; staff, rod; spoke |
| 3 | English | -án | Of or pertaining to;. Often added to words of Latin origin, but also used with words of other origins. When a word ends in a |
| 4 | Middle English | -an | — |
via Proto-Slavic radъ
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | radъ | glad; dear; willing |
| 2 | Proto-Slavic | -iťь | Denominal, forming masculine attributables from... |