tvärsäker (Swedish) comes from Swedish säker, from Middle Low German seker, from Old Saxon sikur, from Proto-West Germanic sikur, from Latin sēcūrus, from Latin sē-, from Latin sex, from Proto-Italic seks — six.
tvärsäker (Swedish): dead certain, very sure
Definitions
dead certain, very sure
Ancestry of “tvärsäker”, step by step
tvärsäker traces back through two separate lines of ancestry.