Where does “swefną” come from?

swefną (Proto-Germanic) comes from Proto-Indo-European swépnos, from Proto-Indo-European swopnos, from Proto-Indo-European swep- — to sleep.

Ancestry of “swefną”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanswépnossleep, slumber
2Proto-Indo-Europeanswopnosdream
3Proto-Indo-Europeanswep-to sleep
Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swopnos →Every word from Proto-Indo-European swépnos →
swefną — Etymology, Origin & Word History | Etymology Explorer