Where does “sûr” come from?
sûr (Friulian) comes from Vulgar Latin suberum, from Latin sūber, from Old High German sūbar, from Proto-West Germanic sūbrī, from Latin sōbrius, from Latin sē-, from Latin sex, from Proto-Italic seks — six.
sûr (Friulian): sister; cork; cork oak
Ancestry of “sûr”, step by step