Strong's Exhaustive Concordance'
torment
Perhaps (emphasis mine as well as the following)
remotely from the same as
basis (through the notion of going to the bottom); a touch-stone, i.e. (by analogy) torture -- torment.
this is hardly a definitive interpretation. I mean, does it really mean to say, "going to the butt" (see "by anal") and just trying to avoid sound too crude?
I was talking about that from HELPS Word-Studies as follows:
Cognate: 931 básanos – originally, a black, silicon-based stone used as "a touchstone" to
test the purity of precious metals (like silver and gold).
See 928 (
basanízō).
[In the papyri,
basanos also means, "touchstone," "test" (so P Oxy I. 58.25, ad 288).
931 (
basanois) was "originally (from oriental origin) a touchstone; a 'Lydian stone' used for testing gold because pure gold rubbed on it left a peculiar mark. Then it was used for examination by torture. Sickness was often regarded as 'torture' " (
WP, 1, 37).]