Where does “Swydd Rydychen” come from?

Swydd Rydychen (Welsh) comes from Welsh Rhydychen, from Old English Oxnaford, from Old English ford, from Proto-West Germanic furdu, from Proto-Germanic furduz, from Proto-Indo-European pértus, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “Swydd Rydychen”, step by step

Swydd Rydychen traces back through two separate lines of ancestry.

via Welsh Rhydychen

StepLanguageWordMeaning
1WelshRhydychen—
2Old EnglishOxnafordOxford
3Old Englishfordford
4Proto-West Germanicfurduford
5Proto-Germanicfurduzford
6Proto-Indo-Europeanpértuscrossing
7Proto-Indo-Europeanper-before, in front; first; to go through
8Proto-Indo-Europeanpr̥tóspassed , crossed

via Welsh swydd

StepLanguageWordMeaning
1Welshswyddjob; office, post, position, capacity; county
2Middle Welshswyð—
3Proto-Brythonic*suɨð—
4Latinsēdēsseat, chair
5Latinsedeōto sit, to be seated
6Proto-Italicsedēōsit, be sitting, be seated
7Proto-Indo-Europeansḗd-to sit
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European pértus →