Etymograph

English

thermotension

Thermotension comes from Latin tēnsiō ‘stretching, stretching out, extension’, and goes back to Proto-Indo-European *téndeti.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*téndeti1reconstructed
  2. Proto-Italicc. 1500–700 BCE*tendō1‘to stretch’reconstructed
  3. Latinc. 75 BCE–200 CEtendō1
  4. Latinc. 75 BCE–200 CEtēnsiō1‘stretching, stretching out, extension’
  5. Middle Frenchc. 1400–1600tension1
  6. English1500–presenttension1
  7. Englishtodaythermotension1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English thermotension

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*téndetiWiktionary, English thermotensionreconstructed
  2. Proto-Italicc. 1500–700 BCE*tendōWiktionary, English thermotension‘to stretch’reconstructed
  3. Latinc. 75 BCE–200 CEtendōWiktionary, English thermotension
  4. Latinc. 75 BCE–200 CEtēnsiōWiktionary, English thermotension‘stretching, stretching out, extension’
  5. Middle Frenchc. 1400–1600tensionWiktionary, English thermotension
  6. English1500–presenttensionWiktionary, English thermotension
  7. EnglishtodaythermotensionWiktionary, English thermotension

A compound of *ten- ‘to stretch, extend’ + *tend- ‘to stretch, extend’

Proto-Indo-European *ten- ‘to stretch, extend’

Proto-Indo-European *ten- ‘to stretch, extend’

Proto-Indo-European *tend- ‘to stretch, extend’

Linked words

through Proto-Italic *tendō ‘to stretch’

pretend, extend, attendance, intend, tender, intentional, contend, pretense, entendre, inattention, portend, 27 more

through Latin tendō

attention, tend, extent, extensive, intention, extension, tense, contention, tempt, tensor, tensile, entente, extensible, portent, detent, 40 more

through English tension

hypertension, hypotension, pretension, 4 more

Today it means

noun A process of increasing the strength of wrought iron by heating it to a determinate temperature, and giving to it, while in that state, a mechanical strain or tension in the direction in which the strength is afterward to be exerted.

Sources

Sources: Wiktionary, “thermotension”. 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 *téndeti / thermotension

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