Etymology and origin of the Latin word calleo
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC, Plautus
- Ultimate origin
- Proto-Italic (*kaln/so-)
Etymology tree
Forms
calleō (present infinitive callēre, perfect active calluī); second conjugation, no passive, no supine stem[1] It has no supine.[1]
Etymology
It is from Latin callum (“hardened skin”) + -eō,[2][1][3] perhaps through an older adjective meaning “hard”.[1][4] De Vaan traces callum to Proto-Italic *kaln/so- (“hard”) and compares Old Irish calath (“hard”) and Welsh caled (“hard”), but finds its Indo-European origin uncertain.[4] Nonius explained the verb as meaning “knows”, from calliditās (“shrewdness”), and also from callousness.[5]
Earliest recorded meaning
De Vaan dates it from Plautus,[4] who has ribs calloused with blows, plagis costae callent.[2][3]
Semantic evolution
Its literal sense, to be hard or calloused, is rare;[3] Plautus plays on both senses, being more “hardened” than boar's hide.[2][3] Figuratively it is to be callous or insensible: Servius Sulpicius writes to Cicero that a mind practised in such misfortunes should by now be hardened.[2][3] More often it means to be practised or skilled in something, as in Accius' question whether someone is skilled in craft and deceit.[2][3] Transitively it is to know by experience: Plautus has “how thoroughly he knows everything!”, Pacuvius “they know how to fear their masters' orders”, and Terence “I know how that is usually done”.[2] Church Latin has it as to be hardened, know by experience, understand.[6]
Timeline
- c. 250–184 BC – Plautus, of calloused ribs and of knowing.[2][4][7]
- 220–130 BC – Pacuvius, “know how to”.[2][7]
- 190–159 BC – Terence, with an object clause.[2][7]
- 170–c. 90 BC – Accius, “skilled in”.[2][7]
Meanings
Verb
- (intransitive) To be hard, callous;[2][3][1] of the mind, to be hardened, unfeeling.[2][3][1]
- (intransitive) To be practised or skilled (in).[2][3][1]
- (transitive) To know by experience, understand; to know how to.[2][1][6]
Word family
- callidus
- calliscō
- callēns
- callenter
- concallēscō
- percalleō
Related words
- callum
References
- ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ 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
- ^ a b c d e f g h i Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Derived terms
Cite this entry
“Calleo.” Etymologically, 20 Oct. 2026, etymologically.com/la/calleo. Accessed 20 Oct. 2026.
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