Lucre \LOO-kuhr\ , noun;
1. Monetary gain; profit; riches; money -- often with a negative connotation
This word dates to the late 14th century and comes from Latin lucrum ("gain, profit"), which is derived from the Proto-Indo-European base *lu-/*leu-.
Today's word and the first definition were both taken from Dictionary.com's 'Word of the Day' for Wednesday, March 30
Etymologies come from the Oxford English Dictionary and/or Etymonline.com