Tribulation (qlipsew). From qlibw, to press, to oppress, to squeeze (cf. Ephesians 7:14 ). The English word is from the Latin tribulum, the roller used by the Romans for pressing wheat. Cf. our "steam roller" Trench (Synonyms of the N.T., pp. 202-4): "When, according to the ancient law of England, those who wilfully refused to plead, had heavy weights placed on their breasts, and were pressed and crushed to death, this was literally qlipsi." The iron cage was stenocwria.