disserveEtymologyFrom Old French desservir, from Latin dis- (“indicating negation”) + servīre (“to serve”).disserve means to treat poorly; to do a disservice to. Lexicurio rates it Sui generis — a strength score of 87 out of 100.verbTo treat poorly; to do a disservice to“They are an excellent group of journalists, and over the last five years the executives manhandling their newspaper have disserved them at every turn.”