graphology

Concise Oxford English Dictionary © 2008 Oxford University Press:
graphology/ɡraˈfɒləʤi/

▶noun

• 1 the study of handwriting, especially as used to infer a person's character.

• 2 Linguistics the study of written and printed symbols and of writing systems.

– derivatives
graphological adjective,
graphologist noun.

– origin C19: from Gk graphē ‘writing’ + -logy.