pyro (English)

Where does "pyro" come from?

The English adjective 'pyro' developed as a shortening of a longer word beginning with the prefix pyro-[1]. That combining form ultimately traces back to the Ancient Greek noun 'πῦρ'[1], meaning 'fire'[1]. This Greek term descends from Proto-Hellenic '*pāwər', which goes back further to the Proto-Indo-European reconstructed form '*péh₂wr̥'[2].

Open questions

• The Proto-Indo-European form is considered to contain a specific substantifying suffix on a root, though clearly related terms are lacking. [3]

Full etymology tree

• pyro (English), 'Pyromaniac, pyromaniacal.'
  • clipping pyro- (English), 'Fire, heat.'
    • derived πῦρ (pûr) (Ancient Greek), 'a fire'
      • inherited *pāwər (Proto-Hellenic)
        • inherited *péh₂wr̥ (Proto-Indo-European), 'fire'

Ancestors

• πῦρ (Ancient Greek)

Sources

1. pyro (English) - Wiktionary
2. πῦρ (pûr) (Ancient Greek) - Wiktionary
3. péh₂wr̥ (Proto-Indo-European) - Wiktionary

Updated October 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris