Etymograph

English

castello

Castello comes from Italian castello ‘castle’, from Latin castrum ‘fort’, and ultimately from Proto-Indo-European *ḱes- ‘to cut’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ḱes-1‘to cut’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*ḱstrom1reconstructed
  3. Proto-Italicc. 1500–700 BCE*kastrom1‘part, share of something’reconstructed
  4. Latinc. 75 BCE–200 CEcastrum1‘fort’
  5. Latinc. 75 BCE–200 CEcastellum2‘castle, fort, citadel, fortress, stronghold’
  6. Italianc. 1300–presentcastello3‘castle’
  7. Englishearliest quotation 2016castello3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin castellum
  2. 2 Wiktionary, Italian castello
  3. 3 Wiktionary, English castello
  4. Earliest quotation in Wiktionary’s entry: 2016, Christopher Walker: “The bus wound its way up into San Marino,…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ḱes-Wiktionary, Latin castellum‘to cut’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*ḱstromWiktionary, Latin castellumreconstructed
  3. Proto-Italicc. 1500–700 BCE*kastromWiktionary, Latin castellum‘part, share of something’reconstructed
  4. Latinc. 75 BCE–200 CEcastrumWiktionary, Latin castellum‘fort’
  5. Latinc. 75 BCE–200 CEcastellumWiktionary, Italian castello‘castle, fort, citadel, fortress, stronghold’
  6. Italianc. 1300–presentcastelloWiktionary, English castello‘castle’
  7. Englishearliest quotation 2016castelloWiktionary, English castello. Earliest quotation in Wiktionary’s entry: 2016, Christopher Walker: “The bus wound its way up into San Marino,…”

Linked words

through Proto-Indo-European *ḱes- ‘to cut’

chastity, caries, chaste, chastise, cassation, 23 more

through Proto-Italic *kastrom ‘part, share of something’

castrate, 19 more

through Latin castrum ‘fort’

alcazar, 20 more

through Latin castellum ‘castle, fort, citadel, fortress, stronghold’

castle, cashel, 17 more

Today it means

noun A municipality of San Marino.

Sources

Sources: Wiktionary, “castello”; the older steps come from the Wiktionary entries for Latin castellum, Italian castello. 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 *ḱes- / castello

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