Where does “secure” come from?

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

secure (Latin): ablative singular of secūris; carelessly;...

Definitions

  1. ablative singular of secūris; carelessly;...

Ancestry of “secure”, step by step

StepLanguageWordMeaning
1Latinsēcūruscareless, negligent
2Latinsē-apart-; aside-; away
3Latinsexsix; 6
4Proto-Italicsekssix
5Proto-Indo-Europeanswéḱssix
Every word from Proto-Indo-European swéḱs →Every word from Latin sē- →Every word from Proto-Italic seks →