The name 'Doctor' comes from the Latin word 'docere,' which means 'to teach.' The term 'Doctor' was originally used to refer to a teacher or a scholar, and it was not until the Middle Ages that it became associated with medicine. The first known use of the term 'Doctor' in English dates back to the 14th century. In the past, the title of 'Doctor' was not limited to medical professionals. It was also used to refer to experts in other fields such as law, philosophy, and theology. The title of 'Doctor' is often abbreviated as 'Dr.,' which is derived from the Latin word 'Dominus,' meaning 'lord' or 'master.' In some countries, the title of 'Doctor' is reserved for those who have earned a doctoral degree, while in others, it is also used as a courtesy title for medical professionals. The term 'Doctor' is used in various ways in different cultures. For example, in Japan, the term 'Sensei' is used to refer to a doctor or a teacher, while in India, the term 'Doctor Sahib' is used to refer to a doctor. The term 'Doctor' has also been used as a title for fictional characters, such as Doctor Who, a time-traveling alien in a British science fiction television program. The term 'Doctor' has also been used as a metaphorical title for people who are seen as experts or authorities in their field. For example, someone might be referred to as a 'doctor of love' or a 'doctor of rock and roll.' The term 'Doctor' has also been used in various idiomatic expressions, such as 'doctor's orders,' which means to follow a doctor's advice or instructions, or 'doctor's appointment,' which means a scheduled meeting with a doctor.

The root form of Doctor is Doctor — meaning Medical professional, healer, medical practitioner..

Doctor remains a beloved choice, ranking #16 in the US. Timeless appeal across cultures and generations.