Where does “lykil” come from?

lykil (Old Swedish) comes from Old Norse lykill, from Old Norse lúka, from Proto-Germanic lūkaną, from Proto-Indo-European lewǵ- — to break, tear; to break, shatter.

Ancestry of “lykil”, step by step

StepLanguageWordMeaning
1Old Norselykillkey
2Old Norselúkato shut; to end, bring to an end, finish,...
3Proto-Germaniclūkanąto close, to shut; Alternative form of *leukaną
4Proto-Indo-Europeanlewǵ-to break, tear; to break, shatter
Every word from Proto-Indo-European lewǵ- →Every word from Proto-Germanic lūkaną →Every word from Old Norse lúka →