grinding
Exodus 11:5
and all the first-born in the land of Egypt shall die, from the first-born of Pharaoh who sits upon his throne, even to the first-born of the maidservant who is behind the mill; and all the first-born of the cattle.
Judges 16:21
And the Philistines seized him and gouged out his eyes, and brought him down to Gaza, and bound him with bronze fetters; and he ground at the mill in the prison.