Verbum nobile (The word of a nobleman) is a one-act comic opera by Polish national composer Stanisław Moniuszko written to a libretto by Jan Chęciński [pl], and set in 18th century Poland before foreign partitions of the country.
It was first performed at the Teatr Wielki, Warsaw, on 1 January 1861 to instant popularity.
[1] The plot is a rehash of a familiar operatic theme.
Zuzia and Michal are promised to each other by their parents, without their having met; they meet accidentally and fall in love.
All is explained, preventing a duel between Marcin and Serwacy, and the marriage can go ahead.