'monogamous' originates from Greek, specifically the word 'monogamos,' where 'mono-' meant 'single' and 'gamos' meant 'marriage.'

'monogamos' transformed into the Latin word 'monogamus,' and eventually became the modern English word 'monogamous.'

Initially, it meant 'having one marriage,' but over time it evolved into its current meaning of 'having one partner at a time.'