Source : Webster's Revised Unabridged Dictionary (1913)

Lazarist \Laz"a*rist\, Lazarite \Laz"a*rite\, n. (R. C. Ch.)
   One of the Congregation of the Priests of the Mission, a
   religious institute founded by Vincent de Paul in 1624, and
   popularly called Lazarists or Lazarites from the College of
   St. Lazare in Paris, which was occupied by them until 1792.