Etymograph

English

caustic

Caustic comes from Latin causticus ‘burning’, from Ancient Greek καυστός ‘burnt’, and ultimately from Proto-Hellenic *káwyō.

  1. Proto-Hellenicc. 2200–1600 BCE*káwyōreconstructed
  2. Ancient Greekc. 800–300 BCEκαίωkaíō‘I burn’
  3. Ancient Greek, derivedc. 800–300 BCEκαυστός‘burnt’
  4. Ancient Greek, derivedc. 800–300 BCEκαυστικόςkaustikós‘burning’
  5. Latinc. 75 BCE–200 CEcausticus‘burning’
  6. Englishearliest quotation 1843caustic

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Proto-Hellenicc. 2200–1600 BCE*káwyōreconstructed
  2. Ancient Greekc. 800–300 BCEκαίωkaíō‘I burn’
  3. Ancient Greek, derivedc. 800–300 BCEκαυστός‘burnt’
  4. Ancient Greek, derivedc. 800–300 BCEκαυστικόςkaustikós‘burning’
  5. Latinc. 75 BCE–200 CEcausticus‘burning’
  6. Englishearliest quotation 1843caustic

Earliest quotation: 1843, Charles Dickens: “How now!" said Scrooge, caustic and cold as ever.”

Linked words

through Proto-Indo-European *keh₂w- ‘to burn’

holocaust, caudal, 4 more

Today it means

adj Capable of burning, corroding or destroying organic tissue.

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

Etymograph / Proto-Hellenic *káwyō / caustic