Gur·djieff 
(gûrjē-ĕf, -jĭf), George Ivanovich 1874?-1949.
(gûrjē-ĕf, -jĭf), George Ivanovich 1874?-1949. Armenian-born spiritual leader. Following a period of extensive travel in the Middle East and Asia, he founded (1919) the Institute for the Harmonious Development of Man.