For Silva-Orbegozo there are 2 on Yasni with different names.
Among the most common last names on Yasni Silva-Orbegozo is on position 4525.
Forest or forest
(Sent from: Rolf Göbbert)
One can think of two sources of Orbegozo (Or Orbegoso): one derived from "urbegoso" and would result in "lower fresh water" and also another forming a composite word "Orube" (Solar) and "joy" (sweet) and result by "sweet solar". Orbegozo (Edo Orbegoso) bi deiturak jatorri izan ditzake, gutxienez: Bat, "urbegoso" izan daiteke, "ur gozoa Beheko" itzuli genezakeena, alegia. Bestea, berriz, "Orube" (eraikia) eta "joy" (gozoa) izan daitezke, eta "etxe gozoa" itzuli genezake. The name Altzaga (Alzaga or Alçaga) would place of alders. Tokia haltz Izena Altzaga izango zen.