Doctor is an lettered title that originates from the Latin news of the unaltered spelling and meaning. The word is originally an agentive noun of the Latin verb docere [d??ke?r?] 'to teach'. It has been habituated to as an academic interest in Europe since the 13th century, when the pre-eminent doctorates were awarded at the University of Bologna and the University of Paris.
Having befit established in European universities, this usage spread all the world. Contracted "Dr" or "Dr.", it is used as a designation also in behalf of a woman who has obtained a doctorate (e.g., PhD). In assorted parts of the era it is also used aside medical practitioners, regardless of whether they maintain a doctoral-level degree.