'pertinence' originates from Latin, specifically the word 'pertinentia,' where 'pertinere' meant 'to pertain or relate to.'

'pertinentia' transformed into the Old French word 'pertinence,' and eventually became the modern English word 'pertinence' through Middle English.

Initially, it meant 'to relate to or concern,' but over time it evolved into its current meaning of 'relevance or applicability.'