Where does “senis” come from?

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

senis (Latin): dative plural of sēnī; ablative plural of sēnī;...

Definitions

  1. dative plural of sēnī; ablative plural of sēnī;...

Ancestry of “senis”, step by step

StepLanguageWordMeaning
1Latinsenisix each; dative masculine singular of senex;...
2Latinsexsix; 6
3Proto-Italicsekssix
4Proto-Indo-Europeanswéḱssix
Every word from Proto-Indo-European swéḱs →Every word from Proto-Italic seks →Every word from Latin sex →