adversity (n.)

c. 1200, aduersite "condition of misfortune, hardship, difficulty, distress," from Old French adversite, aversite (Modern French aversité) "adversity, calamity, misfortune; hostility, wickedness, malice" (Modern French adversité), from Latin adversitatem (nominative adversitas) "opposition," from adversus "turned against, hostile" (see adverse).