- Original: σαρδόνυξ - Transliteration: Sardonux - Phonetic: sar-don'-oox - Definition: 1. a sardonyx, a precious stone marked by the red colours of the carnelian (sard) and the white of the onyx - Origin: from the base of G4556 and onux (the nail of a finger, hence the onyx stone) - TDNT entry: None - Part(s) of speech: Noun Masculine - Strong's: From the base of G4556 and ὄνυξ onux (the nail of a finger; hence the onyx stone); a sardonyx that is the gem so called: - sardonyx. Total KJV Occurrences: 1 • sardonyx, 1 Revelation 21:20