Late 18th century; earliest use found in Paul Henry Maty (1744–1787), librarian. From psycho- + -logic, after psychology. Compare post-classical Latin psychologicus, French psychologique, German psychologisch.
Definition of psychologic in US English:
psychologic
adjectiveˌsʌɪkəˈlɒdʒɪk
Psychological.
Origin
Late 18th century; earliest use found in Paul Henry Maty (1744–1787), librarian. From psycho- + -logic, after psychology. Compare post-classical Latin psychologicus, French psychologique, German psychologisch.