doctor
LatinVariants
Related Roots
About This Root
From Latin doctor (teacher), from docēre (to teach). The root connects teaching and knowledge: docile (teachable), doctrine (what is taught), document (something that teaches or proves). The word doctor originally meant "learned teacher" before narrowing to medical practitioners — though the academic title PhD preserves the older sense.
Associated Words
docile
Easily taught or controlled; obedient
doctor
a medical professional; a holder of a doctorate
doctorate
The highest academic degree awarded by a university
doctors
Plural of doctor; medical practitioners; to treat medically or tamper with
doctrinaire
Rigidly applying theory without regard for practicality; a dogmatic theorist
doctrine
A set of authoritative beliefs or principles held by a group or religion
document
a written record; to record information
documentation
Written materials providing evidence, instructions, or official records
documents
Official written papers; to record in writing