Where does “biocrust” come from?
biocrust (English) comes from English crust, from Middle English cruste, from Anglo-Norman cruste, from Latin crusta, from Proto-Italic *krustos, from Proto-Indo-European krustós, from Proto-Indo-European krews- — to form a crust, begin to freeze.
biocrust (English): biological soil crust
Ancestry of “biocrust”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | crust | A more solid, dense or hard layer on a surface or... |
| 2 | Middle English | cruste | — |
| 3 | Anglo-Norman | cruste | — |
| 4 | Latin | crusta | The hard surface of a body; rind, shell, crust,... |
| 5 | Proto-Italic | *krustos | — |
| 6 | Proto-Indo-European | krustós | hardened |
| 7 | Proto-Indo-European | krews- | to form a crust, begin to freeze |