E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Luz or Luez.
The indestructible bone; the nucleus of the resurrection body.
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“‘How doth a man revive again in the world to come?’ asked Hadrian; and Joshua Ben Hanani’ah made answer. ‘From luz in the backbone.’ He then went on to demonstrate this to him: He took the bone luz, and put it into water, but the water had no action on it; he put it in the fire, but the fire consumed it not; he placed it in a mill, but could not grind it; and laid it on an anvil, but the hammer crushed it not.”—Lightfoot.
