[ 'sɒlɪsɪz(ə)m ]
■ noun a grammatical mistake.
↘a breach of good manners; an instance of incorrect behaviour.
Derivatives
solecistic -'sɪstɪk adjective
Origin
C16: from Fr. solécisme , or via L. from Gk soloikismos , from soloikos 'speaking incorrectly'.