Meaning
The word tsur, "rock," occurs also in the compound names Elizur (Nu 1:5), Zurishaddai (Nu 1:6, etc.) and Pedahzur (Nu 1:10). Gray, Numbers 6, says that a Sabean name Suri'addana is found in an inscription said to be of the 8th century BC, or somewhat carrier (Hommel, Ancient Hebrew Tradition, 320), and bartsur, in a Zinjirli inscription of the 8th century BC (Panammu Inscr., 1. 1), and that possibly the Old Testament place-name "Beth-zur" should be added (Jos 15:58, 1Ch 2:45, 2Ch 11:7, Neh 3:16).
David Francis Roberts