Where does “seks” come from?

seks (Old High German) comes from Proto-Germanic sehs, from Proto-Indo-European swéḱs — six.

Ancestry of “seks”, step by step

StepLanguageWordMeaning
1Proto-Germanicsehssix
2Proto-Indo-Europeanswéḱssix

Words derived from “seks”

Every word from Proto-Indo-European swéḱs →Every word from Proto-Germanic sehs →