- desultory
- 1581, "skipping about," from L. desultorius, adj. form of desultur "hasty, casual, superficial," lit. noun meaning "a rider in the circus who jumped from one horse to another while they are in gallop," from desul-, stem of desilire "jump down," from de- "down" + salire "to jump, leap" (see salient). Sense of "irregular" is c.1740.