by Jim Young (guest)
9/22/2005, 3:11 PM
It is. It's from an old place-name which you are unlikely to find on a map. "... the old manor of Plenderleith in Oxnam, Roxburghshire" (G. F. Black). There is some evidence that the first syllable is from the Brythonic PREN, meaning "tree". Otherwise the name is yet to be explained.