Etymograph

English

endostoma

Endostoma comes from Ancient Greek στόμα ‘mouth’, and goes back to Proto-Indo-European *stéh₃mn̥.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*stéh₃mn̥1‘mouth’reconstructed
  2. Ancient Greekc. 800–300 BCEστόμα2‘mouth’
  3. Englishtodayendostoma2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek στόμα, which cites Beekes
  2. 2 Wiktionary, English endostoma

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*stéh₃mn̥Wiktionary, Ancient Greek στόμα, which cites Beekes‘mouth’reconstructed
  2. Ancient Greekc. 800–300 BCEστόμαWiktionary, English endostoma‘mouth’
  3. EnglishtodayendostomaWiktionary, English endostoma

Linked words

through Ancient Greek στόμα ‘mouth’

stomach, 7 more

Today it means

noun A plate that supports the labrum in certain crustacea.

Sources

Sources: Wiktionary, “endostoma”; the older steps come from the Wiktionary entry for Ancient Greek στόμα. 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 *stéh₃mn̥ / endostoma

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