ἀμέθυστος, -ου, ἡ (accusative to Plut., ἀ- μεθύω, being regarded as an antidote against drunkenness) [in LXX: Exo.28:19 36:19 39:12 Eze.28:13 * ;] amethyst, a purple quartz: Rev.21:20.† (AS)
STRONG'S WORD STUDY
G271 — ἀμέθυστος
amethustos · amethyst · Greek