It is widely accepted that the term Coele is a transcription of Aramaic kul, meaning all, the entire, such that the term originally identified all of Syria. The word Coele, which literally means hollow in Koine Greek, is thought to have come about via a folk etymology referring to the hollow Beqaa Valley between Mount Lebanon and the Anti-Lebanon mountains. However, the term Coele-Syria was also used in a wider sense to indicate all Syria or all Syria except Phoenicia, by the writers; Pliny, Arrian, Ptolemy and also Diodorus Siculus, who indicated Coele-Syria to at least stretch as far south as Joppa, while Polybius stated that the border between Egypt and Coele-Syria lay between the towns of Rhinocolara and Rhaphia.