Where does “caldheort” come from?

caldheort (Old English) comes from Old English cald, from Proto-Germanic *kald, from Proto-Germanic kaldaz, from Proto-Germanic kalaną, from Proto-Indo-European ǵel- — to swallow; swallow.

Ancestry of “caldheort”, step by step

StepLanguageWordMeaning
1Old EnglishcaldAlternative form of ċeald
2Proto-Germanic*kald—
3Proto-Germanickaldazcold
4Proto-Germanickalanąto be cold, to freeze
5Proto-Indo-Europeanǵel-to swallow; swallow
Every word from Proto-Indo-European ǵel- →Every word from Proto-Germanic kalaną →Every word from Proto-Germanic kaldaz →