noun (sometimes initial capital letter) (esp. in Marxist theory)
- lump of sugar,
- lump sum,
Origin of lumpenproletariat
Word Origin for lumpenproletariat
1897, from German Lumpenproletariat (1850), from Karl Marx, who coined it to mean "rabble, poorest of the working class," from German lump "ragamuffin" + proletariat. Secondary sense of "boorish, stupid people" led to lumpen- being taken as a suffix meaning "unenlightened."