'noticer' originates from the English word 'notice', which comes from the Latin word 'notitia', where 'notus' meant 'known'.

'notitia' transformed into the Old French word 'notice', and eventually became the modern English word 'notice'.

Initially, it meant 'to know or be aware of something', but over time it evolved into its current meaning of 'to observe or pay attention to something'.