Where does “frost pocket” come from?
frost pocket (English) comes from English Frost, from Middle English frost, from Old English frost, from Proto-Indo-European prustós — frost.
Ancestry of “frost pocket”, step by step
frost pocket traces back through two separate lines of ancestry.
via English Frost
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | Frost | A cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing |
| 2 | Middle English | frost | Cold, freezing, or frosty weather; weather that... |
| 3 | Old English | frost | produced by metathesis |
| 4 | Proto-Indo-European | prustós | frost |