Etymograph

English

optics

Optics comes from Medieval Latin opticus ‘optic, optical’, from Ancient Greek ὄψις ‘view’, and ultimately from Proto-Indo-European *h₃ekʷ- ‘to see’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₃ekʷ-1‘to see’reconstructed
  2. Ancient Greekc. 800–300 BCEὄψ2‘eye’
  3. Ancient Greekc. 800–300 BCEὄψις3‘view’
  4. Ancient Greekc. 800–300 BCEὀπτικός4optikós‘optic, optical, visual’
  5. Medieval Latinc. 600–1500opticus4‘optic, optical’
  6. Englishearliest quotation 2007optics4

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek ὄψ
  2. 2 Wiktionary, Ancient Greek ὄψις
  3. 3 Wiktionary, Ancient Greek ὀπτικός
  4. 4 Wiktionary, English optics
  5. Earliest quotation in Wiktionary’s entry: 2007, Mark Steyn, Blowing a 'hinge moment' of history: “[…] I'd be interested to know whether US authorities…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₃ekʷ-Wiktionary, Ancient Greek ὄψ‘to see’reconstructed
  2. Ancient Greekc. 800–300 BCEὄψWiktionary, Ancient Greek ὄψις‘eye’
  3. Ancient Greekc. 800–300 BCEὄψιςWiktionary, Ancient Greek ὀπτικός‘view’
  4. Ancient Greekc. 800–300 BCEὀπτικόςWiktionary, English opticsoptikós‘optic, optical, visual’
  5. Medieval Latinc. 600–1500opticusWiktionary, English optics‘optic, optical’
  6. Englishearliest quotation 2007opticsWiktionary, English optics. Earliest quotation in Wiktionary’s entry: 2007, Mark Steyn, Blowing a 'hinge moment' of history: “[…] I'd be interested to know whether US authorities…”

Linked words

through Proto-Indo-European *h₃ekʷ- ‘to see’

eye, anthropology, oculus, 46 more

through Ancient Greek ὄψις ‘view’

8 more

Today it means

noun The physics of light and vision: basic optical science.

Sources

Sources: Wiktionary, “optics”; the older steps come from the Wiktionary entries for Ancient Greek ὄψ, Ancient Greek ὄψις, Ancient Greek ὀπτικός. 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 *h₃ekʷ- / optics

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