Where does “seguro” come from?

seguro (Portuguese) comes from Old Portuguese seguro, from Latin sēcūrus, from Latin sē-, from Latin sex, from Proto-Italic seks, from Proto-Indo-European swéḱs — six.

seguro (Portuguese): safe; secure; sure; certain; self-confident;...

Definitions

safe; secure; sure; certain; self-confident;...

Ancestry of “seguro”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	seguro	safe
2	Latin	sēcūrus	careless, negligent
3	Latin	sē-	apart-; aside-; away
4	Latin	sex	six; 6
5	Proto-Italic	seks	six
6	Proto-Indo-European	swéḱs	six

Words derived from “seguro”

inseguro

Every word from Proto-Indo-European swéḱs →Every word from Latin sē- →Every word from Proto-Italic seks →