Etymograph

English

obey

Obey comes from Latin oboediō ‘to obey, yield obedience to’, from audiō ‘to hear’, and ultimately from Proto-Indo-European *h₂ew- ‘to see, perceive’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-1‘to see, perceive’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ewis1‘clearly, manifestly’reconstructed
  3. Proto-Italicc. 1500–700 BCE*awizdiō1‘to hear’reconstructed
  4. Latinc. 75 BCE–200 CEaudiō2‘to hear’
  5. Latinc. 75 BCE–200 CEoboediō2‘to obey, yield obedience to’
  6. Old Frenchc. 842–1400obeir2
  7. Anglo-Normanc. 1066–1400obeir2
  8. Middle Englishc. 1150–1500obeyen2
  9. Englishearliest quotation 1590obey2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin audio
  2. 2 Wiktionary, English obey
  3. Earliest quotation in Wiktionary’s entry: 1590, Edmund Spenser, Book III, Canto IV: “They were all taught by Triton, to obay /…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-Wiktionary, Latin audio‘to see, perceive’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ewisWiktionary, Latin audio‘clearly, manifestly’reconstructed
  3. Proto-Italicc. 1500–700 BCE*awizdiōWiktionary, Latin audio‘to hear’reconstructed
  4. Latinc. 75 BCE–200 CEaudiōWiktionary, English obey‘to hear’
  5. Latinc. 75 BCE–200 CEoboediōWiktionary, English obey‘to obey, yield obedience to’
  6. Old Frenchc. 842–1400obeirWiktionary, English obey
  7. Anglo-Normanc. 1066–1400obeirWiktionary, English obey
  8. Middle Englishc. 1150–1500obeyenWiktionary, English obey
  9. Englishearliest quotation 1590obeyWiktionary, English obey. Earliest quotation in Wiktionary’s entry: 1590, Edmund Spenser, Book III, Canto IV: “They were all taught by Triton, to obay /…”

The story

In Latin, ob + audire would have been expected to become Classical Latin *obūdiō (compare in + claudō becoming inclūdō), but it has been theorized that the usual law court associations of the word for obeying encouraged a false archaism from ū to oe, to oboediō (compare Old Latin oinos → Classical Latin ūnus).

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *h₂ew- ‘to see, perceive’

love, egg, ear, aviation, acoustic, oval, avid, anesthesia, ovation, avian, auspicious, aviator, aural, ey, avarice, aviary, ocarina, otolaryngology, 64 more

through Proto-Indo-European *h₂ewis ‘clearly, manifestly’

auditory, 5 more

through Proto-Italic *awizdiō ‘to hear’

audition, auditorium, auditor, 7 more

through Latin audiō ‘to hear’

audience, audit, audible, 11 more

through Latin oboediō ‘to obey, yield obedience to’

obedient, 2 more

through Old French obeir

obeisance, 1 more

Today it means

verb To do as ordered by (a person, institution etc), to act according to the bidding of.

Sources

Sources: Wiktionary, “obey”; the older steps come from the Wiktionary entry for Latin audio. 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 *h₂ew- / obey