Etymologically

Etymology and origin of the Latin word insilio

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Latin saliō
Etymology tree
inherited borrowed derived
Latin salio
Italian salire
Latin insilio
From the same root
Latin assilio ← salio
Latin desilio ← salio
Latin dissilio ← salio
Latin exsilio ← salio
Latin prosilio ← salio
Latin salax ← salio
Latin subsilio ← salio
Latin transilio ← salio

Pronunciation

  • Classical: [ĩːˈsɪ.li.oː][1]
  • Ecclesiastical: [inˈsiː.li.o][1]

Forms

īnsiliō (present infinitive īnsilīre, perfect active īnsiluī or īnsilīvī or īnsiliī, supine īnsultum); fourth conjugation, no passive[1] Plautus has the spelling insuliō.[2][3] Besides the perfect in -uī, forms in -īvī and -iī occur, and Quadrigarius has the imperfect insilibat.[3][4]

Etymology

It is from Latin in- + saliō1 (“to leap, jump”).[2][1][3] De Vaan traces saliō1 to Proto-Italic *sal-je- (“to jump”) and Proto-Indo-European *sh2l-ie/o-, but regards the reconstruction of the root as uncertain.[5] Cognate with Ancient Greek ἅλλομαι (hállomai, “to jump”) and Old Irish saltraid (“to trample”).[5]

Earliest recorded meaning

The TLL finds it from Plautus on,[3] whose Rudens has in scapham insiluimus, “we jumped into the skiff”.[2][4]

Semantic evolution

It means to leap into or onto something, with in and the accusative, with the plain accusative or the dative, or absolutely:[2][4] Lucilius has someone leap on a man's head, Caesar soldiers leaping onto the enemy's phalanxes, Livy a man leaping onto his horse, and Horace a leap into Etna.[2] Pliny the Elder says a vine shoot mounts the trellis, and Silius Italicus uses it of the sea.[2] Plautus jokes about leaping into the worst of torments, which Lewis and Short take as being crucified.[2][4]

From the sense of leaping on to attack, Apuleius has dogs springing at a man from all sides, and Statius has a goddess fall upon Thebes.[2] The frequentative īnsultō grew from it.[1]

Timeline

  • c. 250–184 BC – Plautus uses it of jumping into a skiff.[2][6]
  • c. 180–102 BC – Lucilius uses it of leaping on a man's head.[2][6]
  • c. 50 BC – Caesar uses it of soldiers leaping onto the phalanxes.[2][6]
  • 23/24–79 AD – Pliny the Elder uses it of a vine shoot climbing.[2][6]
  • c. 125–175 AD – Apuleius uses it of dogs attacking.[2][6]

Meanings

Verb

  1. To leap into or onto, jump on; to mount.[2][4]
  2. To spring at, leap on (to attack).[2][4]

Word family

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Insilio.” Etymologically, 20 Oct. 2026, etymologically.com/la/insilio. Accessed 22 Oct. 2026.

Last edited on . ·