The original meaning of doctor is "lecturer". In the past, almost all natural disciplines and humanities were called philosophy, so the person with the highest knowledge was called doctor of philosophy, which is also the origin of doctor. However, medicine does not belong to the philosophy just mentioned, so the highest-level medical professionals are called doctors in physics, also referred to as doctors for short.

This is why doctors are both doctors and doctors.

In English and Romance, doctor stands for doctor, which is the abbreviation of doctor of medicine and comes from the Latin meaning of doctor doceo. The meaning of doctor's table comes directly from doceo, which needs to be taught. These two words come from the same word.

The rest of Germanic and Slavic languages have their own words, in which doctor comes from other words, while doctor is introduced from Latin. However, the meaning of doctor was introduced one after another, but two forms were kept in the same language.

Metge in Catalan and mé tge in Oak in Romanesque family are the words of two doctors directly derived from Latin medicus.

Arzt in Germanic German comes from Latin archiater, which means doctor. Dutch art and German Arzt are homologous.

The rest of the North Germanic languages, such as Danish L? Ge, Sweden l? Kare, lege in Norwegian, l in Icelandic? Knir, these words for doctor come from old Scandinavian l? Knir, tohear, therapy

I'm in Cournot? Knir also influenced the Finnish language of Uralic language family, Finnish doctor L? k？ Ri, from the verb l? k？ , from the word treatment.