co-fire

verb

To fire (different types of fuel) together.

OriginEnglish fire ← Middle English fyr ← Old English fȳr →
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Meanings

verbco-fire (third-person singular simple present co-fires, present participle co-firing, simple past and past participle co-fired)

present singular third person co-fires · participle present co-firing · participle past co-fired · past co-fired

  1. To fire (different types of fuel) together.

    Another fuel that has been co-fired with solid wastes is oil shale.

    1999, John G Webster, Wiley Encyclopedia of Electrical and Electronics Engineering
    1 more example

    At present, co-firing offers the best opportunities for market penetration of biomass.

    2004, Mary D Archer, James Barber, Molecular to Global Photosynthesis

Origin

  1. Englishco-
  2. Proto-Indo-European*péh₂wr̥
  3. Proto-Germanic*fōr
  4. Proto-West Germanic*fuir
  5. Old Englishfȳr
  6. Middle Englishfyr
  7. Englishfire
  8. Englishco-fire

From co- + fire.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: co-fire on Wiktionary, CC BY-SA 4.0.