Etymologically

motor

Etymology and origin of the Latin word motor

Confidence
Established
Formation
Derivation
First attested
Martial
Ultimate origin
Latin (moveō)
Etymology tree
inherited borrowed derived
Latin motor
English motor

Pronunciation

  • IPA (Classical): [ˈmoː.tɔr][1]
  • IPA (Ecclesiastical): [ˈmɔː.tor][1]

Forms

mōtor m (genitive mōtōris); third declension[1]

Etymology

It is from moveō “to move” with the agent suffix -tor.[2][1][3]

Earliest recorded meaning

The OLD and Gaffiot cite Martial, of the one who rocked the poet's cradle.[2][4] Köbler dates Martial 40–102/103 AD.[5]

Semantic evolution

In Martial it was someone who moves or shakes something, cūnārum mōtor “the rocker of my cradle”.[2][6]

In Ecclesiastical and scholastic Latin it was a mover, an impulse, and Köbler lists it in Thomas Aquinas' Summa theologiae.[7][5] British Medieval Latin used it for a mover, of God, the soul and abstractions.[8] English motor is recorded in the mid-15th century, of God as the prime mover; the sense “machine” is modern.[3]

Timeline

  • 40–102/103 AD – Martial uses it.[2][5]
  • mid-15th century – English motor is recorded.[3]

Meanings

Noun

  1. Someone who moves or rocks something.[2]
  2. (Medieval Latin) A mover, and God as prime mover.[7][8]

Word family

  • motorius

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  5. ^ a b c 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
  7. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ a b Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press

Borrowed into

Cite this entry

“Motor.” Etymologically, 16 Oct. 2026, etymologically.com/la/motor. Accessed 16 Oct. 2026.

Last edited on . ·