Where does “assegurar” come from?

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

assegurar (Portuguese): to ensure, assure or secure

Definitions

to ensure, assure or secure

Ancestry of “assegurar”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	assegurar	—
2	Vulgar Latin	*assēcūrare	—
3	Latin	sēcūrus	careless, negligent
4	Latin	sē-	apart-; aside-; away
5	Latin	sex	six; 6
6	Proto-Italic	seks	six
7	Proto-Indo-European	swéḱs	six

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