Etymograph

English

casco

Casco comes from Spanish casco ‘helmet’, from cascar ‘to split’, and ultimately from Latin quatiō ‘to shake, agitate, batter, shatter, demolish,…’.

  1. Latinc. 75 BCE–200 CEquatiō1‘to shake, agitate, batter, shatter, demolish, overthrow, rend’
  2. Latinc. 75 BCE–200 CEquassō1‘strike’
  3. Vulgar Latinc. 100–700 CE*quassicāre2‘hit, strike’reconstructed
  4. Old Spanishc. 950–1500cascar3
  5. Spanishc. 1500–presentcascar2‘to split’
  6. Spanishc. 1500–presentcasco4‘helmet’
  7. Englishtodaycasco4

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin quassicare
  2. 2 Wiktionary, Spanish casco
  3. 3 Wiktionary, Spanish cascar
  4. 4 Wiktionary, English casco

Earlier history uncertain. See Wiktionary.

Lineage

  1. Latinc. 75 BCE–200 CEquatiōWiktionary, Latin quassicare‘to shake, agitate, batter, shatter, demolish, overthrow, rend’
  2. Latinc. 75 BCE–200 CEquassōWiktionary, Latin quassicare‘strike’
  3. Vulgar Latinc. 100–700 CE*quassicāreWiktionary, Spanish casco‘hit, strike’reconstructed
  4. Old Spanishc. 950–1500cascarWiktionary, Spanish cascar
  5. Spanishc. 1500–presentcascarWiktionary, Spanish casco‘to split’
  6. Spanishc. 1500–presentcascoWiktionary, English casco‘helmet’
  7. EnglishtodaycascoWiktionary, English casco

Linked words

through Proto-Indo-European *(s)kuh₁t-yé-ti

pasta, paste, pastiche, patisserie, 27 more

through Latin quatiō ‘to shake, agitate, batter, shatter, demolish,…’

concussion, repercussion, zouk, 17 more

through Latin quassō ‘strike’

cashier, quash, fracas, casse, 6 more

Today it means

noun A flat-bottomed, square-ended boat once used in the Philippines as a lighter to ferry goods between ship and shore

Sources

Sources: Wiktionary, “casco”; the older steps come from the Wiktionary entries for Latin quassicare, Spanish casco, Spanish cascar. 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 / Latin quatiō / casco

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