One of the mysteries of the English language finally explained.
1Spiritualism. A message supposed to have been written by a spirit, or by psychical means; a spirit writing. Now rare.
2Chiefly Psychology. A diagrammatic representation or written summary of a person's personality; especially one based on psychological history, responses to tests, etc.
Late 19th century. From psycho- + -gram. With sense 1 compare earlier psychograph.
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