\Trench"more\, n.
A kind of lively dance of a rude, boisterous character. Also,
music in triple time appropriate to the dance. [Obs.]

      All the windows in the town dance new trenchmore.
                                               --Beau. & Fl.

\Trench"more\, v. i.
To dance the trenchmore. [Obs.] --Marston.