Biblical hapax legomenon of ultimately uncertain meaning, however context and etymology suggest it as speaking of glens found in between mountains, which are common in Judea and Samaria: he:T:2 lists it in connection with other parts of a mountainous landscape such as caves and peaks, while the shared root with נָהָר (nahár, “river”) hints at it containing some stream. It was borrowed into Modern Hebrew with the meaning "tunnel", which is the result of instead interpreting the biblical passage as not referring to the inaccessible terrain, but rather to protective measures taken by the Israelites against the invading nomadic tribes.