Etymograph

English

endoctrine

Endoctrine comes from French endoctriner ‘to indoctrinate’, from Latin doctrīna ‘teaching, instruction’, and ultimately from Proto-Indo-European *deḱ- ‘to take’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*deḱ-1‘to take’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*doḱ-éye-ti1reconstructedcausative of *deḱ-
  3. Proto-Italicc. 1500–700 BCE*dokejō1reconstructed
  4. Proto-Italicc. 1500–700 BCE*dokeō1‘to cause to perceive’reconstructed
  5. Latinc. 75 BCE–200 CEdoceō2‘to teach or instruct’
  6. Latinc. 75 BCE–200 CEdoctor2‘teacher’
  7. Latinc. 75 BCE–200 CEdoctrīna3‘teaching, instruction’
  8. Frenchc. 1600–presentdoctrine4
  9. Frenchc. 1600–presentendoctriner5‘to indoctrinate’
  10. Englishtodayendoctrine5

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin doceo
  2. 2 Wiktionary, Latin doctrina
  3. 3 Wiktionary, French doctrine
  4. 4 Wiktionary, French endoctriner
  5. 5 Wiktionary, English endoctrine

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*deḱ-Wiktionary, Latin doceo‘to take’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*doḱ-éye-tiWiktionary, Latin doceoreconstructedcausative of *deḱ-
  3. Proto-Italicc. 1500–700 BCE*dokejōWiktionary, Latin doceoreconstructed
  4. Proto-Italicc. 1500–700 BCE*dokeōWiktionary, Latin doceo‘to cause to perceive’reconstructed
  5. Latinc. 75 BCE–200 CEdoceōWiktionary, Latin doctrina‘to teach or instruct’
  6. Latinc. 75 BCE–200 CEdoctorWiktionary, Latin doctrina‘teacher’
  7. Latinc. 75 BCE–200 CEdoctrīnaWiktionary, French doctrine‘teaching, instruction’
  8. Frenchc. 1600–presentdoctrineWiktionary, French endoctriner
  9. Frenchc. 1600–presentendoctrinerWiktionary, English endoctrine‘to indoctrinate’
  10. EnglishtodayendoctrineWiktionary, English endoctrine

Linked words

through Proto-Indo-European *deḱ- ‘to take’

tail, decent, dignity, decoration, decor, paradox, disdain, dogma, dainty, indignation, fonda, indignant, dignitary, deign, digne, 53 more

through Proto-Italic *dokeō ‘to cause to perceive’

documentary, 14 more

through Latin doceō ‘to teach or instruct’

document, dodo, docile, dox, docent, 16 more

through Latin doctor ‘teacher’

doctor, 4 more

through Latin doctrīna ‘teaching, instruction’

doctrinal, 1 more

Today it means

verb To teach; to indoctrinate.

Sources

Sources: Wiktionary, “endoctrine”; the older steps come from the Wiktionary entries for Latin doceo, Latin doctrina, French doctrine, French endoctriner. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *deḱ- / endoctrine

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