solœcism

Noun

solecism (plural solecisms)

1. An error or improper usage.
   • […]to suppose that the general concern of this Country can be directed by thirteen heads, or one head without competent powers, is a solecism, the bad effects of which every Man who has had the practical knowledge to judge from, that I have, is fully convinced of; tho' none perhaps has felt them in...1783 July 8, George Washington, Letter to Rev. William Gordon

   Synonyms:

   aberration, bloomer, blooper, blunder, boner, boo-boo, break, clanger, cock-up, disadventure

   1. An error in the use of language.
      • The "simple" metaphor, such as the instance given, becomes the "continued" metaphor when the analogy or similitude is worked out in a series of phrases and expressions based on the primary metaphor; it is in such "continued metaphors" that the solecism of "mixed" metaphors is likely to occur.1911, “Metaphor”, in Encyclopædia Britannica Eleventh Edition
   2. A faux pas or breach of etiquette; a transgression against the norms of expected behavior.
      • "Best young woman!" repeated Mr. Lovel; "'pon honour, Jack, you have made a most unfortunate speech; however, if Lady Louisa can pardon you,-and her Ladyship is all goodness,-I am sure nobody else can; for you have committed an outrageous solecism in good manners."1778, Fanny Burney, Evelina: Or the History of a Young Lady's Entrance into the World, Letter LXVIII: EVELINA TO THE REV. MR. VILLARS. Clifton, Sept. 28th.