The NAS Old Testament Hebrew Lexicon Strong's Number: 3710 Browse Lexicon Original WordWord Origin@kfrom (03721)Transliterated WordTDNT EntryKephTWOT - 1017Phonetic SpellingParts of Speechkafe Noun Masculine Definition rock, hollow of a rock NAS Word Usage - Total: 2rocks 2 NAS Verse Count Job1Jeremiah1Total2The Hebrew lexicon is Brown, Driver, Briggs, Gesenius Lexicon; this is keyed to the "Theological Word Book of the Old Testament." These files are considered public domain.Bibliography Information Brown, Driver, Briggs and Gesenius. "Hebrew Lexicon entry for Keph". "The NAS Old Testament Hebrew Lexicon". .