- a nonstandard or ungrammatical usage, as unflammable and they was.
- a breach of good manners or etiquette.
- any error, impropriety, or inconsistency.
1577, from M.Fr. solécisme, from L. soloecismus "mistake in speaking or writing," from Gk. soloikismos "to speak (Greek) incorrectly," from soloikos "ungrammatical utterance," prop. "a speaking like the people of Soloi," from Soloi, Athenian colony in Cilicia, whose dialect the Athenians considered barbarous.
- Paul Theroux, "Upside-Down Cake", 27 June 2016 The New Yorker (http://www.newyorker.com/magazine/2016/06/27/upside-down-cake-by-paul-theroux)