Etymologically

spiro

Etymology and origin of the Latin word spiro

Confidence
Uncertain
First attested
Plautus
Etymology tree
inherited borrowed derived
Latin spiro
English transpire
Latin spiritus
English spirit

Pronunciation

  • IPA (Classical): [ˈspiː.roː][1]
  • IPA (Ecclesiastical): [ˈspiː.ro][1]

Forms

spīrō (present infinitive spīrāre, perfect active spīrāvī, supine spīrātum); first conjugation[1]

Etymology

The origin is uncertain.[2][1] De Vaan reconstructs Proto-Italic *spīr/s- and suggests it may imitate the sound of breathing; it has no direct cognates, and Balto-Slavic words for squeaking look alike but differ in meaning.[2] Kroonen links it with Proto-Germanic *fīsaną (“to blow; to break wind”), from a root Proto-Indo-European *(s)peys- (“to blow, breathe”),[1] and the OLD likewise starts from *speis-, comparing Old Norse fīsa.[3]

Earliest recorded meaning

It is found from Plautus onwards,[2] whose lover is “testing whether her lips were breathing”.[3]

Semantic evolution

It meant to breathe and so to be alive, as when Cicero speaks of a man “while he still breathed”.[3] With an object it meant to breathe out, as fire-breathing monsters do in Lucretius, and to give off a smell, as Virgil's strongly smelling savory.[3] Winds were said to breathe, that is, to blow.[3]

Figuratively it meant to breathe or express a spirit, as when Horace says the Roman poet “has a tragic spirit”.[3] The phrase dum spiro spero means “while I breathe, I hope”.[1] From it came spiritus, the source of English spirit, and its compounds gave inspire and transpire.[2][4]

Timeline

  • c. 250–184 BC – Plautus uses it for breathing.[3][5]
  • 96–55 BC – Lucretius uses it of the Chimaera breathing flames.[3][5]
  • 81–43 BC – Cicero uses it for being alive.[3][5]
  • 70–19 BC – Virgil uses it for winds and smells.[3][5]
  • mid-13th century – English spirit comes from its noun spiritus.[4]
  • 1590s – English transpire comes through French.[4]

Meanings

Verb

  1. To breathe.[3][6]
  2. To be alive, live.[3][1]
  3. To breathe out, exhale.[3][1]
  4. To give off (a smell, vapour).[3]
  5. (of winds) To blow.[3][1]
  6. (figurative) To breathe, express (a spirit); to be inspired.[3][1]

Word family

  • aspīrō
  • cōnspīrō
  • exspīrō
  • īnspīrō
  • interspirō
  • perspīrō
  • prospīrō
  • respīrō
  • spīrābilis
  • spīrāculum
  • spīrāmen
  • spīrāmentum

References

  1. ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  3. ^ a b c d e f g h i j k l m n o p Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press

Derived terms

Descendants

Cite this entry

“Spiro.” Etymologically, 15 Oct. 2026, etymologically.com/la/spiro. Accessed 15 Oct. 2026.

Last edited on . ·