Where does “seitdem” come from?

seitdem (German) comes from German seit, from Middle High German sīt, from Old High German sīda, from Proto-Germanic *sīdā, from Latin sēta, from Latin saeta, from Proto-Italic saitā, from Proto-Indo-European séh₂ito- — to satiate, satisfy.

seitdem (German): since, ever since; since that; since

Definitions

  1. since, ever since; since that; since

Ancestry of “seitdem”, step by step

seitdem traces back through two separate lines of ancestry.

via German seit

StepLanguageWordMeaning
1Germanseitsince; for
2Middle High Germansīt
3Old High Germansīdasilk
4Proto-Germanic*sīdā
5Latinsēta
6Latinsaetaa bristle, hair on an animal; silk
7Proto-Italicsaitā
8Proto-Indo-Europeanséh₂ito-
9Proto-Indo-Europeansh₂ey-to bind, fetter
10Proto-Indo-Europeanseh₂-to satiate, satisfy

via German dem

StepLanguageWordMeaning
1Germandemdative masculine/neuter singular of der: the;...
Every word from Proto-Indo-European seh₂-Every word from Proto-Indo-European sh₂ey-Every word from Proto-Indo-European séh₂ito-