Where does “Portierin” come from?

Portierin (German) comes from German Portier, from French portier, from Old French portier, from Old French porte, from Latin porta, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “Portierin”, step by step

StepLanguageWordMeaning
1GermanPortierporter, doorman
2Frenchportiergatekeeper, doorkeeper, doorman; goalkeeper
3Old Frenchportier
4Old Frenchportedoor
5Latinportagate, especially of a city; entrance, passage,...
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin porta