|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
from the Lat. lucrum, "gain." 1 Tim. 3:3, "not given to filthy lucre." Some MSS. have not the word so rendered, and the expression has been omitted in the Revised Version.