perhaps remotely from the same as 939 (through the notion of going to the bottom)
TDNT:
1:561,96
Part of Speech:
noun masculine
Usage in the KJV:
torment 3
Total: 3
Definition:
a touchstone, which is a black siliceous stone used to test the purity of gold or silver by the colour of the streak produced on it by rubbing it with either metal
the rack or instrument of torture by which one is forced to divulge the truth