Where does “frost” come from?

frost (Old Saxon) comes from Proto-West Germanic *frost, from Proto-Germanic frustaz, from Proto-Indo-European prustós — frost.

Ancestry of “frost”, step by step

StepLanguageWordMeaning
1Proto-West Germanic*frost—
2Proto-Germanicfrustazcold; frost; freezing weather; frost; rime
3Proto-Indo-Europeanprustósfrost

Words derived from “frost”

Every word from Proto-Indo-European prustós →Every word from Proto-Germanic frustaz →Every word from Proto-West Germanic *frost →