Etymologically

Etymology and origin of the Latin word offirmo

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Proto-Indo-European *dher-mo-
Etymology tree
inherited borrowed derived
Latin firmus
French ferme
Italian fermo
Latin firmo
French fermer
Italian fermare
Italian firmare
Latin offirmo
From the same root
Latin firme ← firmus
Latin firmitas ← firmus
Latin firmitudo ← firmus
Latin infirmus ← firmus
English firm ← firmo
Latin firmamentum ← firmo
French enfermer ← fermer
French refermer ← fermer

Pronunciation

  • Classical: [ɔfˈfɪr.moː][1]
  • Ecclesiastical: [ofˈfir.mo][1]

Forms

offirmō (present infinitive offirmāre, perfect active offirmāvī, supine offirmātum); first conjugation[1]

Etymology

It is from Latin ob- + firmō (“to make firm”).[2][3][1] That verb is formed from firmus (“firm”), which de Vaan traces to Proto-Italic *fermo- and Proto-Indo-European *dher-mo- (“holding”).[4]

Earliest recorded meaning

It is found from Plautus on,[4][3] meaning to make the mind hard and unyielding, or to make up one's mind: satin offirmātum quod mihi erat, id mē exōrat?, “am I being talked out of what I had firmly resolved?”[2]

Semantic evolution

In early Latin it is used of hardening the will or oneself (offirmā tē), and of making up one's mind to a course of action, in Plautus, Terence, Pacuvius and Accius.[2] Catullus has quīn tū animō offirmās, “why do you not steel your heart?”[2] In classical Latin it is mostly found in the participle offirmātus, “resolute, obstinate”.[5] Festus glosses offirmātō as “obstinate, persevering”.[3]

The physical sense, to make something fast, appears in Apuleius, of a pole used to bar the doors of a stable.[2][5]

Timeline

  • c. 250–184 BC – Plautus uses it of hardening one's resolve.[2][6]
  • 190–159 BC – Terence uses it reflexively and with an infinitive.[2][6]
  • 81/79–52/50 BC – Catullus uses it intransitively of steeling oneself.[2][6]
  • 4 BC–65 AD – Seneca speaks of a mind steeled to endure everything.[2][6]
  • c. 125–175 AD – Apuleius uses it of barring doors.[2][6]

Meanings

Verb

  1. To make (something) firm against attack, to bar, secure.[2][5]
  2. To make (the mind or will) unyielding;[2][1] (reflexive or intransitive) to steel oneself, refuse to give way.[2][1]
  3. To make up one's mind to, persist in (a course of action).[2][5]

Word family

  • offirmātē
  • offirmātus

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 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. ^ 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
  5. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Offirmo.” Etymologically, 20 Oct. 2026, etymologically.com/la/offirmo. Accessed 22 Oct. 2026.

Last edited on . ·