Etymograph

English

smectite

Smectite comes from Ancient Greek σμήχω ‘to rub off’, from σμάω ‘to wipe, clean’, and ultimately from Proto-Indo-European *sm̥H-yé-ti.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*sm̥H-yé-ti1reconstructed
  2. Ancient Greekc. 800–300 BCEσμάω2smáō‘to wipe, clean’
  3. Ancient Greekc. 800–300 BCEσμήχω3smḗkhō‘to rub off’
  4. Englishtodaysmectite3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek σμάω, which cites Beekes, Chantraine
  2. 2 Wiktionary, Ancient Greek σμήχω
  3. 3 Wiktionary, English smectite

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*sm̥H-yé-tiWiktionary, Ancient Greek σμάω, which cites Beekes, Chantrainereconstructed
  2. Ancient Greekc. 800–300 BCEσμάωWiktionary, Ancient Greek σμήχωsmáō‘to wipe, clean’
  3. Ancient Greekc. 800–300 BCEσμήχωWiktionary, English smectitesmḗkhō‘to rub off’
  4. EnglishtodaysmectiteWiktionary, English smectite

Formed from ite

Every English word from Proto-Indo-European *sm̥H-yé-ti

Today it means

noun Any of many clay phyllosilicate minerals that have a relatively open structure.

Sources

Sources: Wiktionary, “smectite”; the older steps come from the Wiktionary entries for Ancient Greek σμάω, Ancient Greek σμήχω. 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 *sm̥H-yé-ti / smectite

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