Etymograph

English

acoustic

Acoustic comes from Medieval Latin acousticus, from Ancient Greek ἀκουστῐκός ‘of or for hearing’, and ultimately from Proto-Indo-European *h₂ew- ‘to enjoy’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-1‘to enjoy’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ṓws1‘ear’reconstructed
  3. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ḱh₂owsyéti1‘to be sharp-eared, to hear well’reconstructed
  4. Proto-Hellenicc. 2200–1600 BCE*akóuhō1‘to hear’reconstructed
  5. Ancient Greekc. 800–300 BCEἀκούω1‘to hear’
  6. Ancient Greekc. 800–300 BCEἀκουστῐκός1akoustĭkós‘of or for hearing’
  7. Medieval Latinc. 600–1500acousticus1
  8. Englishearliest quotation 2020acoustic1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English acoustic
  2. Earliest quotation in Wiktionary’s entry: 2020, 14:45 from the start: “KEY: I've had a banana in banana cake. WATSON:…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-Wiktionary, English acoustic‘to enjoy’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ṓwsWiktionary, English acoustic‘ear’reconstructed
  3. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ḱh₂owsyétiWiktionary, English acoustic‘to be sharp-eared, to hear well’reconstructed
  4. Proto-Hellenicc. 2200–1600 BCE*akóuhōWiktionary, English acoustic‘to hear’reconstructed
  5. Ancient Greekc. 800–300 BCEἀκούωWiktionary, English acoustic‘to hear’
  6. Ancient Greekc. 800–300 BCEἀκουστῐκόςWiktionary, English acousticakoustĭkós‘of or for hearing’
  7. Medieval Latinc. 600–1500acousticusWiktionary, English acoustic
  8. Englishearliest quotation 2020acousticWiktionary, English acoustic. Earliest quotation in Wiktionary’s entry: 2020, 14:45 from the start: “KEY: I've had a banana in banana cake. WATSON:…”

Linked words

through Proto-Indo-European *h₂ew- ‘to enjoy’

love, audience, egg, audit, aviation, oval, obey, avid, audible, ey, anesthesia, avian, ovation, aviator, auspicious, aviary, ocarina, avarice, 66 more

through Proto-Indo-European *h₂ṓws ‘ear’

ear, aural, otolaryngology, 41 more

through Proto-Indo-European *h₂ḱh₂owsyéti ‘to be sharp-eared, to hear well’

hear, hark, 34 more

Today it means

adj Used for soundproofing or modifying sound.

Sources

Sources: Wiktionary, “acoustic”. 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- / acoustic

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