Where does “portehors” come from?

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

Ancestry of “portehors”, step by step

portehors traces back through two separate lines of ancestry.

via Old French porte

StepLanguageWordMeaning
1Old Frenchportedoor
2Latinportagate, especially of a city; entrance, passage,...
3Proto-Indo-Europeanper-before, in front; first; to go through
4Proto-Indo-Europeanpr̥tóspassed , crossed

via Old French hors

StepLanguageWordMeaning
1Old Frenchhorsfrom; out
2Latinforisdoor; gate; opening
3Proto-Indo-Europeandʰwṓrdoor
4Proto-Indo-Europeandʰwer-door
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Latin porta →