'concern' originates from Latin, specifically the word 'concernere,' where 'con-' meant 'together' and 'cernere' meant 'to sift or separate.'

'concernere' transformed into the Old French word 'concerner,' and eventually became the modern English word 'concern' through Middle English.

Initially, it meant 'to sift together,' but over time it evolved into its current meaning of 'to relate to or worry about.'