Where does “þriskulde” come from?

þriskulde (Old Swedish) comes from Old Norse þreskǫldr, from Proto-Germanic þreskwaþluz, from Proto-Germanic þreskaną, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.

Ancestry of “þriskulde”, step by step

StepLanguageWordMeaning
1Old Norseþreskǫldr
2Proto-Germanicþreskwaþluzthreshold
3Proto-Germanicþreskanąto thresh
4Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce

Words derived from “þriskulde

Every word from Proto-Indo-European terh₁-Every word from Proto-Germanic þreskanąEvery word from Proto-Germanic þreskwaþluz