From Longman Dictionary of Contemporary Englishsolecismso‧le‧cis‧m /ˈsɒlɪsɪzəm $ ˈsɑː-/ noun [countable] formal 1 SLGa mistake in the use of written or spoken language2 RUDE/IMPOLITEsomething that is not considered polite behaviour a social solecism
Examples from the Corpus
solecism• She commits a lot of solecisms.Origin solecism (1500-1600) Latin soloecismus, from Greek, from soloikos “speaking incorrectly”, from Soloi ancient city in Turkey where an incorrect form of Greek was spoken 