The Spanish word 'gentuza', meaning 'rabble' or 'riffraff', comes from combining the Spanish word 'gente' (meaning 'people') with the pejorative suffix '-uza'. The word 'gente' itself derives from the Latin word 'gens', which meant 'clan, family, or tribe'. When the pejorative suffix '-uza' was added to 'gente', it transformed the neutral word for 'people' into a derogatory term referring to people of low social status or questionable character.

The most common related Spanish word is 'gente', meaning 'people' or 'folks'. While 'gente' is a neutral term used to refer to people in general, 'gentuza' adds the pejorative suffix to create a dismissive or contemptuous way of referring to people. Another related word is 'gentil', meaning 'kind' or 'gentle', which comes from the same Latin root but developed a positive connotation instead.

Several English words share the same Latin root 'gens'. These include 'gentle', 'genteel', and 'gentleman', all of which originally referred to people of noble birth or good breeding. The word 'gender' also comes from this root, as it originally referred to family lineage or kind. Another related English word is 'genus', used in biology for classification, which reflects the original meaning of grouping or classification of families or types.