listeria

the term 'listeria' is a modern eponym, coined in 1940 to honor the british surgeon and pioneer of antiseptic medicine, joseph lister. it follows the scientific convention of forming genus names by adding the taxonomic suffix '-ia' to a personal name. the suffix '-ia' is commonly used in latin and greek to form abstract nouns or names of places and taxa. therefore, the word's logic is not built from classical roots with inherent meanings like 'disease' or 'bacterium,' but rather functions as a direct memorial label, its modern abstract meaning—a pathogenic bacterium—assigned entirely by the scientific community in tribute to lister's contributions to microbiology and sterile surgery.

this is a modern taxonomic name derived from a person's name. it does not contain separable morphemes with independent meanings in the context of english word formation.