onyx 7718 ## shoham {sho'-ham}; from an unused root probably mean to blanch; a gem, probably the beryl (from its pale green color): -- {onyx}.
sardonyx 4557 # sardonux {sar-don'-oox}; from the base of 4556 and onux (the nail of a finger; hence the "onyx" stone); a "sardonyx", i.e. the gem so called: -- {sardonyx}.