trenchmore

from The Century Dictionary.

• To perform the dance so called; dance the trenchmore.
• noun An old English country-dance, of a lively and boisterous character, common in the sixteenth and seventeenth centuries.
• noun Music for such a dance, which was in triple or sextuple rhythm.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete A kind of lively dance of a rude, boisterous character. Also, music in triple time appropriate to the dance.
• intransitive verb obsolete To dance the trenchmore.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun archaic A lively, boisterous dance.