Where does “porth” come from?

porth (Old Cornish) comes from Proto-Brythonic porθ, from Latin porta, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “porth”, step by step

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

Words derived from “porth

Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin porta