sömnlöshet (Swedish) comes from Swedish sömnlös, from Swedish sömn, from Old Swedish symn, from Old Norse svefn, from Proto-Germanic swefnaz, from Proto-Indo-European swépnos, from Proto-Indo-European swopnos, from Proto-Indo-European swep- — to sleep.
sömnlöshet (Swedish): sleeplessness, insomnia, lack of sleep
Definitions
sleeplessness, insomnia, lack of sleep
Ancestry of “sömnlöshet”, step by step
sömnlöshet traces back through two separate lines of ancestry.