Refutation, disproof; (also occasionally as a count noun) a refutation.
Origin
Late 15th century (in an earlier sense). From Middle French redargucion, redargution (French †redargution) blame, rebuke, refutation and its etymon post-classical Latin redargution-, redargutio refutation, object of reproof (Vulgate) from classical Latin redargūt-, past participial stem of redarguere + -iō. Compare Catalan redargució, Spanish redargución.