Etymograph

English

perchloro

Perchloro comes from Ancient Greek χλωρός ‘greenish-yellow, pale green’, and goes back to Proto-Indo-European *ǵʰelh₃-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰelh₃-1‘green, yellow’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰl̥h₃rós1reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*kʰlōrós1‘greenish-yellow, pale green’reconstructed
  4. Ancient Greekc. 800–300 BCEχλωρός1khlōrós‘greenish-yellow, pale green’
  5. Englishtodayperchloro1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English perchloro

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰelh₃-Wiktionary, English perchloro‘green, yellow’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰl̥h₃rósWiktionary, English perchlororeconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*kʰlōrósWiktionary, English perchloro‘greenish-yellow, pale green’reconstructed
  4. Ancient Greekc. 800–300 BCEχλωρόςWiktionary, English perchlorokhlōrós‘greenish-yellow, pale green’
  5. EnglishtodayperchloroWiktionary, English perchloro

A compound of per- + chloro-

Proto-Indo-European *ǵʰelh₃- ‘green, yellow’

Proto-Indo-European *ǵʰl̥h₃rós

Proto-Hellenic *kʰlōrós ‘greenish-yellow, pale green’

Ancient Greek χλωρός ‘pale green’

English chloro-

Linked words

through Proto-Indo-European *ǵʰelh₃- ‘green, yellow’

gold, fell, yellow, gall, gullible, yolk, felon, cholera, glib, gild, choline, zloty, 26 more

through Ancient Greek χλωρός ‘greenish-yellow, pale green’

chlorine, chlorella, 4 more

Today it means

adj Describing a derivative in which all hydrogen atoms have been replaced by chlorine

Sources

Sources: Wiktionary, “perchloro”. 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 *ǵʰelh₃- / perchloro

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