Etymograph

English

foliation

Foliation comes from Latin folium ‘leaf’, and perhaps goes back to Proto-Indo-European *bʰleh₃- ‘blossom, flower’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*bʰleh₃-1‘blossom, flower’uncertain
  2. Proto-Indo-Europeanc. 4500–2500 BCE*bʰolh₃yom1‘leaf’uncertain
  3. Latinc. 75 BCE–200 CEfolium2‘leaf’
  4. Frenchc. 1600–presentfoliation2
  5. Englishearliest quotation 1907foliation2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin folium
  2. 2 Wiktionary, English foliation
  3. Earliest quotation in Wiktionary’s entry: 1907, Robert William Chambers, New York: “The house was a big elaborate limestone affair, evidently…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*bʰleh₃-Wiktionary, Latin folium‘blossom, flower’uncertain
  2. Proto-Indo-Europeanc. 4500–2500 BCE*bʰolh₃yomWiktionary, Latin folium‘leaf’uncertain
  3. Latinc. 75 BCE–200 CEfoliumWiktionary, English foliation‘leaf’
  4. Frenchc. 1600–presentfoliationWiktionary, English foliation
  5. Englishearliest quotation 1907foliationWiktionary, English foliation. Earliest quotation in Wiktionary’s entry: 1907, Robert William Chambers, New York: “The house was a big elaborate limestone affair, evidently…”

Linked words

through Proto-Indo-European *bʰleh₃- ‘blossom, flower’

full, blood, blow, flower, blade, bless, bloom, fool, floral, bleed, flora, blossom, flourish, ferret, florist, fleur, flor, belladonna, 53 more

through Proto-Indo-European *bʰolh₃yom ‘leaf’

folly, trefoil, 15 more

through Latin folium ‘leaf’

foil, folio, folic, exfoliate, 21 more

Today it means

noun The process of forming into a leaf or leaves.

Sources

Sources: Wiktionary, “foliation”; the older steps come from the Wiktionary entry for Latin folium. 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 *bʰleh₃- / foliation