litigation Look up litigation at Dictionary.com
1567, "disputation," from L.L. litigationem (nom. litigatio), from L. litigatus, pp. of litigare "to dispute, quarrel, strive," from litem (nom. lis, gen. litis) "lawsuit, dispute, quarrel, strife" + root of agere "to drive, conduct" (see act). Meaning "act of carrying on a lawsuit" is from 1647.