årtusende (Swedish) comes from Swedish tusen, from Old Swedish þusand, from Old Norse þúsund, from Proto-Germanic þūsundī, from Proto-Indo-European tuHsont-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.
årtusende (Swedish): a millennium, a period of one thousand years
Definitions
a millennium, a period of one thousand years
Ancestry of “årtusende”, step by step
årtusende traces back through two separate lines of ancestry.