-estr-

/ɛ.stɹ/

interfix

Used to form names of estrogens.

OriginEnglish estrogen ← Ancient Greek γένος (génos) ← Proto-Hellenic *génos →
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Meanings

interfix

alternative estr-

  1. medicineUsed to form names of estrogens.

Origin

  1. Proto-Indo-European*h₁eysh₂-
  2. Ancient Greekοἶστρος (oîstros)
  3. Latinoestrus
  4. Englishestrus
  5. Englishestro-
  6. Proto-Indo-European*ǵenh₁-
  7. Proto-Indo-European*ǵénh₁os
  8. Proto-Hellenic*génos
  9. Ancient Greekγένος (génos)
  10. Englishestrogen
  11. English-estr-

From estrogen.

Full word history & related roots →
Cite this entry
APA

-estr-. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/-estr-

MLA

“-estr-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/-estr-. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “-estr-,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/-estr-.

Source: -estr- on Wiktionary, CC BY-SA 4.0.