smallsword

/ˈsmɔːlˌsɔːrd/
noun
  1. A light, slender sword with a straight blade, used mainly for dueling and fencing in the 17th and 18th centuries.
    • He practiced fencing with a smallsword, learning quick thrusts and parries.
    • Gentlemen in the 1700s often carried a smallsword as part of their formal attire.
    • The museum displayed a smallsword with an ornate silver handle.