The word "graphology" is derived from grapho- (from the Greek γραφή, "writing") and logos (from the Greek λόγος, which relates to discussion or theory).

What is the root word of graphologist?

graphology (n.)

"study of handwriting," 1882, from French graphologie, coined 1868 by Abbé Jean-Hippolyte Michon (1806-1881) from Greek graphein "to write" (see -graphy) + -ologie (see -ology).

What does graphologist mean?

: the study of handwriting especially for the purpose of character analysis.