- Confidence
- Established
- Formation
- Inherited
- First attested
- c. 235–200 BC, Naevius
- Inherited from
- Proto-Italic *frāter
- Ultimate origin
- Proto-Indo-European (*bʰréh₂tēr)
Pronunciation
Forms
frāter m (genitive frātris); third declension[1]
Etymology
It is inherited from Proto-Italic *frāter, inherited from Proto-Indo-European *bʰréh₂tēr (“brother”).[2][1][3] Pinault analyses the Proto-Indo-European word as *bʰr-éh₂- “group of males borne by the same mother” with a contrastive suffix *-ter.[2] Cognate with Venetic vhraterei, Umbrian frater and Oscan fratrúm, with Old Irish bráthair and Welsh brawd, Sanskrit भ्रातृ (bhrā́tar-), Avestan brātar-, Ancient Greek φράτηρ (phrā́tēr, “member of a brotherhood”), Phrygian βρατερε (bratere), Armenian եղբայր (ełbayr), Old Prussian brāti, Lithuanian brólis, Old Church Slavonic братръ (bratrŭ), Gothic 𐌱𐍂𐍉𐌸𐌰𐍂 (brōþar), Old High German bruoder, Old Norse bróðir and Tocharian B procer, all “brother”.[2][4][5] Umbrian fratreks names an officer of a brotherhood.[2] Nigidius explained the word as “almost another self” (fere alter), Festus derived it from the Greek, and Isidore from frūctus.[6]
Earliest recorded meaning
It is found from Naevius onwards,[2] and Plautus calls Neptune the brother of Jupiter.[4][7]
Semantic evolution
It meant a brother, frater germanus a full brother, and in the plural brother and sister; a cousin on the father's side was frater patruelis or simply frater.[4][5] Caesar's Gauls called a kindred people their fratres, and the vocative mi frater was an affectionate address between friends; it also served as a euphemism for a lover.[4] The fratres arvales were members of a priestly college.[4]
Christian Latin used it for a fellow Christian and in the plural for the brethren, and medieval Latin for a monk or friar.[1][7][8] British texts distinguish the half brother and the uterine brother.[9] All Romance languages keep it, as Sardinian fratre, Romanian frate, Old French frere, Italian frate and Portuguese frade, the last two in the sense “friar”,[10][1] and English took fra and frate from Italian and frater as a learned word.[1]
Timeline
- c. 235–200 BC – Naevius uses it.[2]
- c. 250–184 BC – Plautus uses it of brothers and of a cousin.[4][7]
- 116–27 BC – Varro explains the fratres arvales.[4][7]
- 81–43 BC – Cicero addresses his brother as mi frater.[5][7]
- c. 50 BC – Caesar's Suessiones call the Remi their brothers.[4][7]
- before 66 AD – Petronius uses it of a lover.[4][7]
- c. 560–636 AD – Isidore derives it from fructus.[6][7]
Meanings
Noun
- A brother, as in frater germanus, a full brother, and in the plural brother and sister.[4][5]
- A paternal cousin (frater patruelis).[4]
- A friend addressed as brother; a kindred people; a lover.[4]
- A member of a priestly college.[4]
- (Christian Latin) A fellow Christian, and in the plural the brethren.[1][8]
- (Medieval Latin) A monk, a friar.[7][1]
Word family
- frāterculus
- frāternus
- frātria
- frātricīda
- fratrissa
- frātrō
- frātruēlis
- frātellus
- frāternālis
- frāternē
- frāternitās
- frātricīdium
Related words
References
- ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ Pokorny, Julius (1959), Indogermanisches etymologisches Wörterbuch, Bern; Munich: Francke
- ^ a b c d e f g h i j k l m Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d e f g h i Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
- ^ Buchi, Éva; Schweickard, Wolfgang, eds. (2008–), Dictionnaire Étymologique Roman (DÉRom), Nancy: ATILF, http://www.atilf.fr/DERom
Related etymologies
- opus · also from Proto-Indo-European
- albus · also from Proto-Indo-European
- potis · also from Proto-Indo-European
- salvus · also from Proto-Indo-European
- socius · also from Proto-Indo-European
- signum · also from Proto-Indo-European
- foedus · also from Proto-Indo-European
- damnum · also from Proto-Indo-European
Cite this entry
“Frater.” Etymologically, 15 Oct. 2026, etymologically.com/la/frater. Accessed 15 Oct. 2026.
Last edited on . ·