besmirch etymology

English word besmirch comes from English smirch

Detailed word origin of besmirch

Dictionary entryLanguageDefinition
smirch English (eng) To dirty; to make dirty. A chirp of radiation power from an astronomical body that has a smeared appearance on its plot in the time-frequency plane (usually associated with massive bodies orbiting supermassive black holes) (of a reputation) Stain.. Dirt, or a stain.
besmirch English (eng) (transitive) To tarnish something, especially someone's reputation; to debase.. (transitive, literary) To make dirty; to soil.