brotherkinn.
/ˈbrʌðəkɪn/, U.S. /ˈbrəðərˌkɪn/ A small brother (in various senses of the noun). Sometimes as a title or an affectionate form of address. Occasionally depreciative.
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society > society and the community > kinship or relationship > kinsman or relation > sibling > brother > [noun] > younger brother
little brotherOE
cadet1610
brotherkin1827
kid brother1895
kiddy brother1963
1827 T. Carlyle tr. E. T. W. Hoffmann in German Romance II. 285 Thou art in the right, brotherkin [Ger. Brüderchen] Anselmus.
1834 T. Carlyle Sartor Resartus iii. vii. 289 Wert thou, my little Brotherkin, suddenly covered up with even the largest imaginable Glass-bell,—what a thing it were..for the world!
1856 H. Morley Cornelius Agrippa II. 59 Let this brotherkin, priest or Levite turn his heart from her.
1917 America 4 Aug. 430/1 A tiny orphan boy of five who ‘protected’ his three-year-old brotherkin during their flight.
2011 T. Howell Dragon of Cripple Creek v. 302 We're gonna get your brotherkin off, but he's gonna need my help.
This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021).
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n.1827