Etymologically

Etymology and origin of the Latin word residuus

Confidence
Established
Formation
Derivation
First attested
170–c. 90 BC, Accius
Ultimate origin
Proto-Indo-European (*sed-eh₁-)
Etymology tree
inherited borrowed derived
Latin resideo
Latin residuus

Pronunciation

  • Classical: [rɛˈsɪ.du.ʊs][1]
  • Ecclesiastical: [reˈs̬iː.du.us][1]

Forms

residuus (feminine residua, neuter residuum); first/second-declension adjective[1]

Etymology

It is from Latin resideō (“to remain behind”) + -uus.[2][1][3] resideō is a compound of re- and sedeō (“to sit”), which de Vaan traces to Proto-Italic *sed-ē- (“to be seated”) and Proto-Indo-European *sed-eh₁- (“to be seated”), cognate with Old Irish saidid (“to sit”) and Ancient Greek ἕζομαι (hézomai, “to sit down”).[4]

Earliest recorded meaning

Its oldest attestation is a line of Accius quoted by Festus, residuos, somno deditos, where it means sitting idle, like reses.[2]

Semantic evolution

In Cicero it is what is left over from an earlier time, as a hatred he thought he had poured out but that had lingered.[2][5] In the Pro Cluentio pecūniae residuae are public funds kept back by a magistrate after his accounts.[2] It is also what remains to be done or paid, as Cicero's what was paid and what is outstanding,[2] and what is left after something is taken away, the rest; as a noun residuum is the remainder.[2][5] The jurists have an exceptiō reī residuae, against a plaintiff who had split his claims.[2] Jerome, commenting on Obadiah, uses it to render the Hebrew word sarid.[3] English residue comes from residuum through Old French, from the mid-14th century.[6]

Timeline

  • 170–c. 90 BC – Accius, of people sitting idle.[2][7]
  • 81–43 BC – Cicero, of lingering hatred and of public money kept back.[2][5][7]
  • c. 383–419/420 AD – Jerome renders a Hebrew word by it.[3][7]
  • mid-14th century – English residue, from the neuter noun through Old French.[6]

Meanings

Adjective

  1. Left over from an earlier time, lingering, persisting.[2][5][1]
  2. pecūniae residuae: public money kept back by a magistrate after his accounts.[2]
  3. Left behind at the end of a process, residual.[2][1]
  4. Remaining to be done or undergone; of a debt, outstanding.[2]
  5. Left over after something is taken away, remaining;[2][5][8] (neuter as noun) the remainder, rest.[2][5][8]
  6. Sitting idle, slothful.[2]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b c 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. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  7. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  8. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Residuus.” Etymologically, 20 Oct. 2026, etymologically.com/la/residuus. Accessed 20 Oct. 2026.

Last edited on . ·