Originally Posted By: zmjezhd
adversary

It primarily means 'distress, trouble' and secondarily 'vexer, rival wife' (link). It seems only to be used in the secondary sense in the chapter and verse quoted. If you click through on the etymology links, it is the feminine form of tsar 'distress; foe, enemy' from TsRR 'to show hostility toward, vex'.

Ironic that Tsar also means a Russian ruler, (which comes from completely different etymology - Latin Caesar). The Tsars and Tsarinas certainly caused distress and trouble to many.