thermo-

UK/θɜː.məʊ-/US/ˈθɝ.moʊ-/

prefix

Thermal: of, being, or pertaining to heat or temperature.

Opposite
cryo-psychro-
OriginAncient Greek θερμός (thermós) ← Proto-Hellenic *kʷʰermós ← Proto-Indo-European *gʷʰermos →
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Meanings

prefix

alternative therm-

  1. Thermal: of, being, or pertaining to heat or temperature.

Synonyms & antonyms

Opposite
cryo-psychro-

Origin

  1. Proto-Indo-European*gʷʰer-
  2. Proto-Indo-European*gʷʰermos
  3. Proto-Hellenic*kʷʰermós
  4. Ancient Greekθερμός (thermós)
  5. Englishthermo-

From Ancient Greek θερμός (thermós, “warm, hot”).

More words from Ancient Greek

Full word history & related roots →

Translations

Catalan termo-
  • termo-heat
Czech termo-
  • termo-heat
Dutch thermo-
  • thermo-heat
Finnish lämpö-, termo-
  • lämpö-heat
  • termo-heat
French thermo-
  • thermo-heat
German thermo-
  • thermo-heat
Irish teirmi-
  • teirmi-heat
Italian termo-
  • termo-heat
Norwegian Bokmål termo-
  • termo-heat
Polish termo-
  • termo-heat
Portuguese termo-
  • termo-heat
Romanian termo-
  • termo-heat
Spanish termo-
  • termo-heat
Cite this entry
APA

thermo-. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thermo-

MLA

“thermo-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thermo-. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thermo-,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thermo-.

Source: thermo- on Wiktionary, CC BY-SA 4.0.