Where does “subgrade” come from?
Subgrade comes from English sub- combined with grade, which derives from Latin gradus (step, degree) and its verb gradi (to walk), ultimately from Proto-Indo-European gʰredʰ-.
subgrade (English): The layer of native soil on which the foundation...
Definitions
- The layer of native soil on which the foundation...
Ancestry of “subgrade”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | grade | A rating; The performance of an individual or... |
| 2 | French | grade | rank; gradian |
| 3 | Latin | gradus | a step, pace; a stage, degree; a rank |
| 4 | Proto-Italic | graðus | — |
| 5 | Proto-Indo-European | gʰradʰ- | — |