Etymograph

English

arboricity

Arboricity comes from Latin arbor ‘tree’, and goes back to Proto-Indo-European *h₃erdʰ- ‘high’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₃erdʰ-‘high’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*h₃r̥dʰōsreconstructed
  3. Proto-Italicc. 1500–700 BCE*arðōs‘tree’reconstructed
  4. Old Latinc. 700–75 BCEarbōs
  5. Latinc. 75 BCE–200 CEarbor‘tree’
  6. Englishtodayarboricity

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₃erdʰ-‘high’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*h₃r̥dʰōsreconstructed
  3. Proto-Italicc. 1500–700 BCE*arðōs‘tree’reconstructed
  4. Old Latinc. 700–75 BCEarbōs
  5. Latinc. 75 BCE–200 CEarbor‘tree’
  6. Englishtodayarboricity

Linked words

through Proto-Indo-European *h₃erdʰ- ‘high’

arduous, 27 more

through Latin arbor ‘tree’

arboretum, 15 more

Today it means

noun The minimum number of forests into which the edges of an undirected graph may be partitioned.

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *h₃erdʰ- / arboricity