Where does “сигуран” come from?
сигуран (Serbo-Croatian) comes from Venetian sigur, from Latin sēcūrus, from Latin sē-, from Latin sex, from Proto-Italic seks, from Proto-Indo-European swéḱs — six.
сигуран (Serbo-Croatian): sure; safe; reliable
Ancestry of “сигуран”, step by step