Etymograph

English

extensible

Extensible comes from Latin extendō ‘to extend’, from Proto-Italic *tendō ‘to stretch’, and ultimately from 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 CEextendō2‘to extend’
  5. Latinc. 75 BCE–200 CEextēnsibilis2
  6. Englishtodayextensible2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin extendo
  2. 2 Wiktionary, English extensible

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*téndetiWiktionary, Latin extendoreconstructed
  2. Proto-Italicc. 1500–700 BCE*tendōWiktionary, Latin extendo‘to stretch’reconstructed
  3. Latinc. 75 BCE–200 CEtendōWiktionary, Latin extendo
  4. Latinc. 75 BCE–200 CEextendōWiktionary, English extensible‘to extend’
  5. Latinc. 75 BCE–200 CEextēnsibilisWiktionary, English extensible
  6. EnglishtodayextensibleWiktionary, English extensible

Linked words

through Proto-Italic *tendō ‘to stretch’

pretend, attendance, intend, tender, intentional, contend, hypertension, pretense, inattention, entendre, hypotension, portend, pretension, 31 more

through Latin tendō

attention, tend, intention, tension, contention, tense, tempt, tensor, entente, tensile, portent, detent, 46 more

Today it means

adj Capable of being extended.

Sources

Sources: Wiktionary, “extensible”; the older steps come from the Wiktionary entry for Latin extendo. 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 / extensible

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