>That leaves Jysk perte "beat", pirke:firke "squeeze out", Da. pirke,
> > Welsh perth is
> > ultimately, it seems, from Lat. pert(ic)a, the Roman surveying
> > instrument par excellence, recall the pertica militaris 'sectioned
> > land allotments as payment deeded (Celtic and Germanic)
> > mercenaries'.
> Perth (aalong with Gaulish Perta) is generally believed to be a
> derivative of Common Celtic *kWerkWo- "oak" (from PIE *perkWo-)