Etymologically

directorius

Etymology and origin of the Latin word directorius

Confidence
Established
Formation
Derivation
First attested
c. 345–411/412 AD, Rufinus
Ultimate origin
Latin dīrigō
Etymology tree
inherited borrowed derived
Latin rego
Latin dirigo
French diriger
Italian dirigere
Latin directorius
From the same root
Latin expergiscor ← rego
Latin pergo ← rego
Latin rector ← rego
Latin regio ← rego
Latin regula ← rego
Latin subrigo ← rego
Latin surgo ← rego
Latin directio ← dirigo
Latin director ← dirigo
Latin directus ← dirigo
Latin directorium ← directorius

Forms

dīrēctōrius (feminine dīrēctōria, neuter dīrēctōrium); first/second-declension adjective[1][2]

Etymology

It is from Latin dīrigō (“to direct”),[1][3][2] with the suffix -tōrius.[1] De Vaan treats ⟨dīrigō⟩ as a compound of regō (“to direct, guide”).[4]

Earliest recorded meaning

The earliest use is in Rufinus' translation of Origen's commentary on the Song of Songs,[3][2] where the feminine directoria is used as a noun for what seems to be a craftsman's tool for straight lines, like a ruler: if anything in us is crooked, “superducentes directoriam mandatorum dei”, laying on it the straightedge of God's commandments.[3]

Semantic evolution

The Theodosian Code has litterae directoriae, letters that direct or send someone in a given direction.[1] The neuter became the noun dīrēctōrium, a prescribed route.[5][6] In Polish Medieval Latin, Długosz speaks of loca directoria, the places through which a route leads.[7]

Timeline

  • c. 345–411/412 AD – Rufinus uses the feminine as a noun for a straightedge.[3][2]
  • 438 AD – The Theodosian Code has litterae directoriae.[1][2]

Meanings

Adjective

  1. That directs or sends in a given direction: litterae directoriae.[1]
  2. (Medieval Latin) loca directoria: the places along a route.[7]

Noun

  1. (feminine, Late Latin) directoria: a craftsman's tool for straight lines, like a ruler.[3]

Word family

References

  1. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  2. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  3. ^ a b c d e Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  6. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  7. ^ a b Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl

Derived terms

Cite this entry

“Directorius.” Etymologically, 24 Oct. 2026, etymologically.com/la/directorius. Accessed 24 Oct. 2026.

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