OT-POET.filter - strkjv nether:

strkjv@Job:41:24 @ His heart is as firm as a stone; yea, as hard as a piece of the nether millstone.

strkjv@Proverbs:25:20 @ As he that taketh away a garment in cold weather, and as vinegar upon nitre nether#, so is he that singeth songs to an heavy heart.