Etymograph

English

avidin

Avidin comes from Latin avidus ‘hungry’, from aveō ‘wish, desire, long for, crave’, 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*h₂ew-eh₁yeti1reconstructedderived within Proto-Indo-European
  3. Latinc. 75 BCE–200 CEaveō1‘wish, desire, long for, crave’
  4. Latinc. 75 BCE–200 CEavidus2‘hungry’
  5. Englishtodayavidin2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin avidus
  2. 2 Wiktionary, English avidin

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-Wiktionary, Latin avidus‘to enjoy’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-eh₁yetiWiktionary, Latin avidusreconstructedderived within Proto-Indo-European
  3. Latinc. 75 BCE–200 CEaveōWiktionary, Latin avidus‘wish, desire, long for, crave’
  4. Latinc. 75 BCE–200 CEavidusWiktionary, English avidin‘hungry’
  5. EnglishtodayavidinWiktionary, English avidin

Formed from in

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in

Proto-West Germanic *in

Old English in

Middle English in ‘inside’

English in

Linked words

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

love, audience, egg, ear, acoustic, oval, obey, audit, aviation, anesthesia, ey, ovation, audible, auspicious, aural, avian, aviator, otolaryngology, ocarina, aviary, 66 more

through Latin aveō ‘wish, desire, long for, crave’

avarice, 3 more

through Latin avidus ‘hungry’

audacity, audacious, 4 more

Today it means

noun A tetrameric protein produced in the oviducts of birds, reptiles and amphibians and deposited in the whites of their eggs.

Sources

Sources: Wiktionary, “avidin”; the older steps come from the Wiktionary entry for Latin avidus. 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- / avidin