Where does “sex” come from?

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

sex (Interlingua): six

Definitions

  1. six

Ancestry of “sex”, step by step

StepLanguageWordMeaning
1Latinsexsix; 6
2Proto-Italicsekssix
3Proto-Indo-Europeanswéḱssix
Every word from Proto-Indo-European swéḱs →Every word from Proto-Italic seks →Every word from Latin sex →