regas

R1E1G2A1S1

verb

To refill (an appliance such as an air-conditioning unit) with the gases needed for operation.

“If your air conditioner has stopped working, you may need to regas it.”

OriginEnglish gas ← Dutch gas ← Ancient Greek χάος (kháos) →
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Meanings

regas1

verbregas (third-person singular simple present regases or regasses, present participle regassing, simple past and past participle regassed)

present singular third person regases · present singular third person regasses · participle present regassing · participle past regassed · past regassed

  1. transitiveTo refill (an appliance such as an air-conditioning unit) with the gases needed for operation.

    If your air conditioner has stopped working, you may need to regas it.

nounregas (plural regases or regasses)

plural regases · plural regasses

  1. The act of regassing.

Regas2

proper nounRegas (plural Regases)

plural Regases

  1. A surname.

Regas3

proper noun
  1. pluralplural of Rega

Origin

regas · verb, noun

  1. Proto-Italic*wre-
  2. Latinre-
  3. Old Frenchre-
  4. Middle Englishre-
  5. Englishre-
  6. Proto-Indo-European*ǵʰeh₂-
  7. Ancient Greekχαῦνος (khaûnos)
  8. Ancient Greekχάος (kháos)
  9. Dutchgas
  10. Englishgas
  11. Englishregas

From re- + gas.

Full word history & related roots →

Regas · proper noun

  1. GreekΡέγας
  2. CatalanRegàs
  3. EnglishRegas

Two main origins: * Borrowed from Catalan Regàs, a habitational surname from any of various places named with rec (“irrigation channel”). * Borrowed from Greek Ρέγας (Régas), a variant of Ρήγα (Ríga).

More words from Catalan, Greek

Full word history & related roots →

Rhymes & wordplay

Anagrams

sargesagersegar
Cite this entry
APA

regas. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/regas

MLA

“regas.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/regas. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “regas,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/regas.

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