Etymologically

Etymology and origin of the Latin word hilaro

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin hilarus

Pronunciation

  • Classical: [ˈhɪ.ɫa.roː][1]
  • Ecclesiastical: [ˈiː.la.ro][1]

Forms

hilarō (present infinitive hilarāre, perfect active hilarāvī, supine hilarātum); first conjugation[1]

Etymology

It is from Latin hilarus (“cheerful”), with the verbal suffix -ō.[2][3][1] The adjective, also ⟨hilaris⟩, is from Ancient Greek ἱλαρός (hilarós, “cheerful”).[2][1]

Earliest recorded meaning

The TLL's examples begin with Cicero,[3] who uses it of the pleasant motion by which the senses are cheered, and says that Athens was cheered most by the charm of Pericles.[4]

Semantic evolution

It means to make cheerful, to gladden, a rare but Classical word.[2][4] It was also used of giving a cheerful look to something: Cicero describes the earth brightened together with the sky, and Statius festive altars that brighten the groves.[2]

Timeline

  • 81–43 BC – Cicero uses it of cheering the senses and of brightening the earth.[2][4][5]
  • c. 45–96 AD – Statius uses it of altars brightening the groves.[2][5]

Meanings

Verb

  1. To cheer, gladden, make cheerful.[2][4][1]
  2. To give a cheerful appearance to, brighten.[2]

Word family

  • exhilarō

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 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Hilaro.” Etymologically, 24 Oct. 2026, etymologically.com/la/hilaro. Accessed 24 Oct. 2026.

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