mid-14c., "examination, investigation, judicial trial," from Old French discussion "discussion, examination, investigation, legal trial," from Late Latin discussionem (nominative discussio) "examination, discussion," in classical Latin, "a shaking," from discussus, past participle of discutere "strike asunder, break up," from dis- "apart" (see dis-) + quatere "to shake" (see quash). Meaning "a talking over, debating" in English first recorded mid-15c. Sense evolution in Latin appears to have been from "smash apart" to "scatter, disperse," then in post-classical times (via the mental process involved) to "investigate, examine," then to "debate."
1. She does like to have the last word in any discussion.
2. They sat me down and had a serious discussion about sex.
3. In Britain, the growing discussion of women's sexuality raised its own disquiet.
4. This is not the place for a lengthy discussion.
5. The discussion took place in a famous villa on the lake's shore.