Where does “subfrigere” come from?

subfrigere (Vulgar Latin) comes from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

Ancestry of “subfrigere”, step by step

StepLanguageWordMeaning
1Latinsub-under, sub
2Proto-Indo-Europeanupóunder, below
3Proto-Indo-Europeanh₃ewp-—

Words derived from “subfrigere”

Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →