Etymologically

reflexivus

Etymology and origin of the Latin word reflexivus

Confidence
Established
Formation
Derivation
First attested
1267 Roger Bacon More words from the 13th century
Ultimate origin
Latin reflexus#1
Etymology tree
inherited borrowed derived
Latin flectō
Latin reflectō
French réfléchir
Latin reflexus
English reflex
Spanish reflejo
Latin reflexīvus
English reflexive
From the same root
Latin dēflectō ← flectō
Latin flexibilis ← flectō
Latin flexilis ← flectō
Latin flexiō ← flectō
Latin flexūra ← flectō
Latin flexus ← flectō
Latin genūflectō ← flectō
Latin inflectō ← flectō
Latin reflexiō ← reflectō
Spanish reflexivo ← reflexus

Pronunciation

  • Classical: [rɛ.fɫɛkˈsiː.wʊs][1]
  • Ecclesiastical: [re.fleɡˈziː.vus][1]

Forms

reflexīvus (feminine reflexīva, neuter reflexīvum, adverb reflexīvē); first/second-declension adjective[1]

Etymology

It is formed from Latin reflexus1 (“bent back”) + -īvus,[1][2] the participle of reflectō (“to bend back”).[3]

Earliest recorded meaning

Köbler dates its earliest record, from Latham's word-list of British Medieval Latin, to 1267.[4] Roger Bacon uses it of vision by reflection, which he calls weaker than direct vision, and of motion that turns back, which he says cannot be continuous.[2]

Semantic evolution

In scholastic texts it described acts that turn back on themselves (super se reflexivus): a summa attributed to Grosseteste calls the act of understanding necessarily reflexive on itself, and the Oxford Quaestiones ask whether happiness lies in a reflexive act.[2] Wiktionary gives the adverb reflexīvē.[1]

English took reflexive in the 1580s in the sense “reflective, bending back”; the grammatical sense of verbs whose action turns back on the subject is found by 1740.[3]

Timeline

  • 1267 – Earliest dated record that Köbler gives;[4][2] Roger Bacon uses it of reflected vision.[4][2]
  • 1580s – English borrows it as reflexive, “reflective”.[3]
  • by 1740 – English uses reflexive of verbs.[3]

Meanings

Adjective

  1. (Medieval Latin) Moving in the opposite direction, turning back.[2]
  2. (Medieval Latin) Of or by reflection; turning back on itself, reflective.[2]
  3. Reflexive.[1]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g 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
  3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de

Borrowed into

Cite this entry

“Reflexivus.” Etymologically, 7 Nov. 2026, etymologically.com/la/reflexivus. Accessed 7 Nov. 2026.

Last edited on . ·