nobiliary particle

noun Grammar.

a preposition forming part of a title of nobility or surname, as French de or German von.

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British Dictionary definitions for nobiliary particle

nobiliary particle

noun

a preposition, such as French de or German von, occurring as part of a title or surnameMarquis de Sade

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012