Etymologically

formidolosus

Etymology and origin of the Latin word formidolosus

Confidence
Established
Formation
Derivation
First attested
c. 235–200 BC, Naevius
Ultimate origin
Latin (formīdō)
Etymology tree
inherited borrowed derived
Latin formido
Latin reformido
Latin formidolosus

Pronunciation

  • Classical: [fɔr.miː.dɔˈɫoː.sʊs][1]
  • Ecclesiastical: [for.mi.doˈlɔː.s̬us][1]

Forms

formīdolōsus (feminine formīdolōsa, neuter formīdolōsum, superlative formīdolōsissimus); first/second-declension adjective[1] It is also spelled formīdulōsus.[2][1]

Etymology

It is from Latin formīdō (“fear”) + -ōsus, with the diminutive element -ul-.[2] De Vaan reports Leumann's view that it rhymes with perīculōsus (“dangerous”).[3] The origin of formīdō is uncertain: it may go back to *morm-, which would connect it with Ancient Greek μορμώ (mormṓ, “bogey, monster”), but de Vaan finds no Indo-European etymology for that group.[3]

Earliest recorded meaning

Köbler dates it from Naevius.[4] Plautus has herbs that are frightening even to name, let alone to eat.[2]

Semantic evolution

It means causing fear, formidable or dangerous, and also fearful or timid: in Terence one man asks another whether he is frightened.[2] Church Latin glosses it fearful.[5]

Timeline

  • c. 235–200 BC – Naevius uses it.[4]
  • c. 250–184 BC – Plautus of frightening herbs.[2][4]
  • 190–159 BC – Terence of a frightened man.[2][4]

Meanings

Adjective

  1. Causing fear, formidable, alarming, dangerous.[2][1]
  2. Fearful, timorous, frightened.[2][5]

Word family

  • performidolosus

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ 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
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Formidolosus.” Etymologically, 19 Oct. 2026, etymologically.com/la/formidolosus. Accessed 20 Oct. 2026.

Last edited on . ·