Etymograph

English

tegmentum

Tegmentum comes from Latin tegumentum ‘cover, covering’, and goes back to Proto-Indo-European *(s)teg-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*(s)teg-1‘to cover’reconstructed
  2. Proto-Italicc. 1500–700 BCE*tegō1‘to cover’reconstructed
  3. Latinc. 75 BCE–200 CEtegere1‘to cover, clothe’
  4. Latinc. 75 BCE–200 CEtegumentum2as tegmentum‘cover, covering’
  5. Englishtodaytegmentum2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin tegumentum
  2. 2 Wiktionary, English tegmentum

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*(s)teg-Wiktionary, Latin tegumentum‘to cover’reconstructed
  2. Proto-Italicc. 1500–700 BCE*tegōWiktionary, Latin tegumentum‘to cover’reconstructed
  3. Latinc. 75 BCE–200 CEtegereWiktionary, Latin tegumentum‘to cover, clothe’
  4. Latinc. 75 BCE–200 CEtegumentumWiktionary, English tegmentumas tegmentum‘cover, covering’
  5. EnglishtodaytegmentumWiktionary, English tegmentum

Linked words

through Proto-Indo-European *(s)teg- ‘to cover’

tile, thug, sauna, thatch, staccato, toque, 26 more

through Proto-Italic *tegō ‘to cover’

detective, detection, detect, toga, 10 more

Today it means

noun The ventral portion of the midbrain, divided from the tectum by the cerebral aqueduct and the periaqueductal grey.

Sources

Sources: Wiktionary, “tegmentum”; the older steps come from the Wiktionary entry for Latin tegumentum. 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 *(s)teg- / tegmentum

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